Took me about 40 minutes, but it's all good now...  Very smooth disassembly and re-assembly process.
344868
The display looks just fine to me.  (Much better than the damaged one I replaced, anyway!)  It took me a bit longer than the other reviewers to do this job.  I'm not afraid of electronics at all (I have an electrical engineering degree), but I did have some trouble with the size of the parts.  Everything is tiny, and difficult to work with only because of that.  The tools that others bought (TEKTON 2830: suggested below this product by Amazon) worked well enough, and I always like a nice addition to my tools.  I needed a fine pair of needle nose pliers as well just to be able to handle the tiny parts in small spaces, as my fingers are too large (I'm normal sized... it's the parts, not me).  Another really good thing to have would be a workspace with a hands-free magnifier, preferably with a light, again, just to handle the tiny connectors.

One more thing: I hope they improve the directions included.  The English description was near perfect.  But the black&white photos were too low a resolution to actually see what you're supposed to do.  Some zoomed in detail with an arrow here or there would be great.  For example, when it says "Step 11: Use the tip of a spudger to pry the display data cable lock and rotate it toward the DC-In side..."  I would have liked a blow up of the connector, an arrow toward the lock, and a curved arrow showing how to rotate it.  I figured it out, but at first I'd thought something else was supposed to be done.  Fortunately, it's not too critical, as the part that you're taking out is being replaced by the new one, so damaging it isn't much of an issue.  All in all, it would be nice to have photos at least 10x what detail is shown for clarity.  It would also help to point out one re-assembly detail: when re-attaching the set of 3 AirPort antenna wires, just note that the wires are of different lengths - the longest one goes to the furthest contact, as you'd expect.  Not that this would be a real problem, just that it would make the installer more confident that you won't have to go back in to change things...

Anyway, I'm glad not to have had to spend the extra money to have someone else do it, and I didn't need to drop off my computer for a period of time during which I wouldn't be able to use it.
466446
Finished product fine. Assembly very tricky. I had to use 4 of the supplied screws as temporary stabilizers to hold side and end panels together. Otherwise, there were too many moving parts to put tabs and slots together in one corner without another coming loose. The space between the flange and tabs at "foot" end too close together. Had to squeeze tabs in some to fit side panel end in allotted space. The instructions make no mention of needing any tool, other than the supplied wrench. However, I found a phillips-head screwdriver absolutely essential. I am very satisfied with the end result; getting there was quite an adventure.
4540941
It took a total of 20 minutes to install the unit. It took longer to find my wire crimpers to connect the electrical wire than the whole process together.  The unit worked fine from the get-go and I'm glad to get rid of the hand crank.  Would recommend this unit to anyone.
2929563
Thank you to everyone who posted about the installation. I was nervous, but in the end it was pretty simple.  I did try what some suggested by lowering the wheels all the way, but I was not able to bend the old flap to get it off, so I did have to remove the wheel.  Then it slid right off, and the new one slid right on.  Cutting the old glue was actually the hardest part.

For those of you scared of removing the wheel, it's quite simple.  Use a flat blade screw driver to pop the lock washer off, and then hammer on a new lock washer.  I got a 1/2" lock washer at a local hardware store for 33 cents.  I used a 5/8 socket around the washer with my hammer to hammer the new one on.  I am also glad I measured, as the guy at the hardware store told me all lawn mower lock washers are 3/8", and not 1/2".  My measuring tape clearly showed 1/2".  I did buy both just in case, and it truly was 1/2".  I recommend getting the new lock washer in advance and it will take less than 10 minutes to install, most of that time is cutting off the old glue.

I did not glue the new flap back on, and after an hour of mowing, it didn't budge.  The new flap even seems more rigid than the old one, but the old one was a little over 4 years old, so that could be why.
159282
while assembly required some attention to detail, overall it was a quick process and provided instant satisfaction once done.
3418319
It took my husband about an hour to put this together. He followed the instructions and did not have any problems. Each piece was tagged with a small label designating them as part "a", "b", etc. which coincided with the instructions.

There were no problems with the condition of the pieces and everything went together nicely.
4346059
It went together good. Some of the parts looked used, but in good condition. I am satisfied with this purchase!
136554
This is a decent drawer chest if you are handy.  The assemblying process of drawers (six in total) took me almost 4 hours because the instruction was not straight forward and a bit confusing.  However, with a bit trial and error, it is doable.  The assembling of chest itself is a cake walk.  All in all, it took me about 5.5 hours to put it together, which I think is a bit too long.  Once assembled, it is a very decent drawer chest.  We all like it.
3084064
I ordered this "gear & sprocket assembly kit" on Thursday night, and was delivered on Saturday 5:30pm, just-in-time for me to work on fixing my garage door opener. Kudos to Amazon, seller Sanford and Sons? Overhead Doors, and Ensenda Delivery Service. Somehow they all realized how much I needed this part desperately, so I can repair it on the weekend.

All reviewers here were helpful with all their inputs on how to fix it, what should be done and what to avoid.
I started working on it at 6pm and about 4 hours later, my garage door opener working again as good as new. Of course, within those 4 hours, I have to take dinner break, bathroom break, etc. What took me so long was to clean up all the "shaving" / "plastic snow" left behind inside the unit. Blow it with air compressor, clean up the grease gunk. And you work on a small and delicate unit. You proceed carefully and slowly.

I have to inform the manufacturer that one of the tiny screw (part C) to secure the collar part A or B (refer to picture 3 and 4 on manual leaflet) to the shaft failed. It looked like its thread became dull. I have no idea whether the thread on the tiny screw or the collar that became dull/failed. So I re-used the old collar and screws assembly. The grease provided was more than enough. I still have 1/4 or so left over for future re-greasing the gear assembly.

A little bit of filing the burrs on the shaft is necessary in order to take out the collar A or B easily. It will glide effortlessly once you file the burrs and the end of the shaft.

In all, it is not hard to do it yourself, just take your time on weekend, follow the instruction on manual leaflet provided, and also read tips from reviewers on Amazon.
4752545
Assembly was well worth the forty minutes. Stable wheel allotment and easy dump mechanism make short time of intended uses.
4672217
Assembly was a bit of a job, all holes don't line up, and the instructions at times aren't entirely clear. It was collectively a whole day's job (8-10 hours). Pleased once completed.
189603
Easy to assemble, a couple of the screws were a little hard to screw in, but took less than 15-20 minutes. The only complaint is the tipping point, but as long as you balance everything appropriately, you shouldn't have an issue. Clothes successfully went from being hung around my chair to on here!
3863471
After reading some of the reviews, I had was concerned about the assembly, but other than one stud bolt on one of the handles welded at a wrong angle (which I was able to make work without any major modifications), my daughter assembled in 45-50 minutes. I can't wait to put it to use!!!
2858833
Takes a bit of patience to assemble. I made one error and had it all together and glued before I realized it. Now i'll need to drill a new hole to add a shelf support. My fault, though, and the fix should be easy.. The drawers slide beautifully; I look forward to using.  Also, I ended up with one extra piece that I've now determined was a backing for the drawers - too late to re-assemble, but I may power staple or tack it in place (back of desk). My error does not alter functionality or appearance. Looks just like the picture. Allow a couple of hours & lots of patience  to assemble.
138799
Ordered 2 chairs, based on other reviews (thank you!) Very pleased. About 45 min each to assemble, could have been faster except some of the bolts to be tightened with the included allen wrench were positioned so that you couldn't just "spin" the wrench, you know, get almost half a turn, line up the tool again for another half or quarter turn...However, not brain surgery at all, just a bit tedious.
1481571
I received the box in very good shape and it took my son about 1.5 hours to assemble without any problem. Once it was ready, I tried it and the whole thing worked with ease as described in the manual. I just hope it's durable. Otherwise, it's a very good machine for it's value.
2322386
This assembly is a one-step process. Just remove the old one and install this one. No messing with disassembly and rebuilding. And it was cheaper than buying the individual parts. I don't understand why I had to buy the mounting bolts separately, though.