Works but worries me.
932587
I've had this microdrive for about six months.  I use it with a Canon Pro90, and I have a USB Card Reader (for my desktop) and plug the adapter directly into a powerbook via the PCMCIA slot.
When I shoot, I often go for a full weekend, but sometimes take the powerbook with me.  I'll fill this up with large superfine images in a full afternoon of shooting.  I use a couple 64 MB compact flash cards as backup for when I run out of room.
What I like about it:  it's larger than my compact flash cards.
What I don't like about it:  it does run very hot, both in computer and in the camera.  there's been a couple times when it was so hot that it alarmed me.
a couple corrupted data files have appeared on the drive.  i'm not sure whether they are related to the pro90, or whether they are results of a drive malfunction.  i can't get rid of them (they pretend to take up some TERAbytes of space, but don't really).  the drive is still usable, but whenever this happens i get a drive error, and i can't take any more pictures, even if there's clearly space left on the drive until i fix things via computer.  one of the times that this happend, the drive was running very very hot.  i'm not sure whether i'm inappropriately attributing a cause effect relationship, but it seems like the two things may be related.
because it is a drive it seems to be vulnerable to rough handling.  i do take it out of camera while out taking shots because i run out of room, but i do not like worrying about how gingerly i have to handle it.  if it were to stay in camera, i'd probably be less worried.
also, it is slower than the compact flash cards, and this is a bit of a pain.
because of my worries and the loss of speed, i've recently purchased a 256 MB compact flash card in hopes of putting my mind at ease.
my suggestion:  at this size (350 MB), it might be better to stick with flash memory.  at 1 GB, however, the extra memory
and saved dough would probably far outweigh the concerns.
summary:  it has worked fine for me for 6 months.  i've lost
pictures because of it only once or twice, and potential pictures, not pictures on the drive.  if flash memory were available for the same price and in sufficient bulk, i'd choose flash.
1341218
It seems to work but its bulky and when stuff is charging it hums with a high pitch whine not sure if thats normal I would not buy it again.
3354605
Does what it's supposed to but I don't like how the terminals are exposed high potential for accidental contact with other objects.
2314313
it works i had my doubts though though the adapter is a little off and i have to twist it back and forth it does allow me to use may old adapters saving me money.
1437230
I have used this HDMI switch for over a year now and it gets the job done. I connect my Desktop, PS3 and Laptop all to a single monitor using this switch. All in all it does get the job done. However buyer should beware of the following problems:

This device is EXTREMELY sensitive to outside electronic interference. The device will switch the video port or temporary cut off signal to my monitor when I have nearby powered devices. I will list a few example of what I mean below

Example 1:
I have a mini fridge next to my desktop for quick access to cold beverages. The mini frig motor will turn on and off to keep the temperature inside the frig cold. When the motor of my mini frig turns off it will temporary blank out the screen on my monitor for 6-10 seconds. This doesn't happen if the monitor is directly hooked to my ps3 or desktop.

Example 2: I have a desk lamp with a 60 W light bulb next to my desk. The HDMI switch will automatically switch to a different port when I turn on and off the light. In addition it will switch ports when I physically touch the lamp with my hands. Yes it sounds spooky but it does happen.

Example 3: When I disconnect any appliance that draws a lot of the HDMI switch will also blank out for around 8 seconds.

From all these things I strong feel that the switch is either sensitive to EM interference or just constructed badly. But it does get the job done.
4418181
It serves it's purpose but I do not like the other pins exposed while the battery is connected.  This could present a potential problem.
1496783
The mouse is small. It at least works but I fear that I'll end up putting too much pressure on it if I lay my hand on it.
4097695
Works good, but I found that the guard gets in the way more than it helps.
1910890
It works as intended, though I am not sure how happy I am with the darkening effect.
2678982
It works, but one of the RF shields on the Rx came loose as the solder was not done well. As soon as I opened the package I could hear the loose shield rattling around. I have forgone any ability to return this by opening the unit up and properly soldering the shield in place. I was lucky I did not power it up before fixing this as I could have easily shorted out components.  We will see how it last in the long run, but I don't have high hopes by what I saw when I had it open.
870297
I purchased it to stop the ants, I thought it had done the job, but I suddenly had a swarm of ants right next to where I have one of these plugged in, so not sure what to think about it. I seems to work to a degree, but not as I was hopping for.
3163761
Product works fine, but whenever I need to unplug it from my PC it has this locking mechanism and the button to unlock it doesn't seem to always do the job; maybe my product is defective; I don't know, but I do know that I am exerting as much force on the button as I can and it doesn't want to come out sometimes. I fear this may damage the ports on my GPU, but I haven't had any other issues besides that with this adapter.
87894
It does the job.  However, I am concerned about the plastic top and can't find any information on it.  I wonder if there are any chemicals in it that can contaminate the water as steam builds up and drips from it.
1081063
It works ok but there is a  little problem that Id found which connection between tools and batteries is unstable. It stops suddenly during I use them. Ive never had same problem so far by using the original batteries.
1815065
It works but there's still a buzz as if it's a faulty item. Might be our phone line because our last phone did the same thing. I don't know. But we can make calls and receive them, so I guess it suffices.
3690078
Works good, but worried about the weight. It has a tensioner for the plug in adaptor. Will work good for a flat facing plug in, but mine is in dash
3468728
Seems to charge quickly but does get very hot feeling to the touch which does concern me. Going with it at this point for now, will watch that concern though.