OEM, may not be the best choice
584359
These were suppose to be the new one piece replacement version, however, they are the same Two piece design.
2970815
The installation went fine, it fits, but not as well as the original.  There are two raised bosses on the door lock that did not line up.  The threaded inserts that the door handles screw into were really rough, I had to take the door panel off and run a tap though them, the screws were starting to strip out trying to force them in.  The biggest issue I have with this regulator is the window does not roll down all the way, it stops about 1 inch from the bottom.  The original regulator allowed the door to go all the way down.  I give it 3 stars despite these "short comings" since it was about half the price of the OEM.
590475
Not exactly OEM. The pieces fit okay but I have to apply pressure to have it work correctly at times.
4559929
Direct replacement for OEM. Not any different or any better, so this will most likely fail the same way or for the same reason that your OEM one did. But, to be fair, it is as advertised and is exactly what I was looking for and ordered so there isn't really anything to ding them on.
3631222
This is a quality part in terms of materials and almost nearly OEM in terms of fit...but not exactly.  If you are a perfectionist or auto-enthusiast you may have issues with how the part fits in that there are noticeable gaps that are wider than OEM fit between the fixture and body panel.  I notice it, but thankfully my wife does not so we're good to go.  Keep in mind this part is 1/3 the price of OEM.
442901
Perfect fit, doesn't seem like the quality is on pair with oem, but again you are buying an aftermarket part.
4137832
It's supposed to be OEM, but, it doesn't seem like it fits on the camera quite the same way.  Maybe it's just me.  It works perfectly, I'd buy it again.
4495690
good OEM replacement!

Update: After a few months it snapped off at the base. Don't bother
1886190
Not the best fit(1998 XR250R), NOT THE best grip,  but a solid choice for an oem replacement. Very wide. Would recommend,  especially at a fraction of the cost of imd for example
2887702
Does the job intended though for the $ the OEM filter is likely better at filtering finer dirt particulates. Save your $ stay with OEM, wish I had.
2003873
Works well, fits a little tight. No reason thus far to think it won't be an acceptable replacement for the original OEM unit.
612352
Not as OEM quality....whatever you pay you get it.....
3238582
I like to purchase OE parts and accessories, as opposed to "refurbished" or "compatible" products.  While the latter products may work, I feel more comfortable with the OE's.  I'm glad to find a source that supplies my needs!
3934808
Not perfect, not quite as good as factory OEM original. Charges up at around 96% of OEM Dell battery. But it does the job as a 2nd battery for on the road. Delivered by SIB-CORP promptly and in good order. (Be sure to drain and recharge several times before hitting the road with your laptop.)
2797236
Fits perfect and it will work, but it is by no means a perfect replacement. The texture and feel of this back is no where near the same as the OEM Glass back, nor many others on the market. Also it is missing the Apple logo and has such a different (cheap) feel that most people would question the authenticity of the device.
1238303
So I found that the product installed in some areas correctly but would not release when demanded as needed. Prying and fastener damage resulted  and was not as original OEM or Quality replacement requires.
1046955
Good OEM replacement currently being heavily used in a commercial environment. Fits well, and appears well constructed. I haven't measured the battery life compared to OEM but it seems about the same.