Not exactly OEM. The pieces fit okay but I ...
590475
Not exactly OEM. The pieces fit okay but I have to apply pressure to have it work correctly at times.
3922003
Fits good but is much flimsier than OEM part.
4356206
Decent kit but the plastic guides/guards we're not a direct fit to my 1998 Ford 5.4l. I reused my original guards and the Evergreen guides (wear item) Also, the Evergreen guides do not appear to be glass fiber reinforced as the originals are. I'd suggest spending the extra money to get the USA made OEM equivalent kit.
422879
Doesn't fit like OEM I'm not sure what I need to do in order for the part to stay in its location
2844430
not exact fit replacement. wider than stock, and not as tall as stock. i had to do some modifying. the price was right but we will see if it was worth it. it is not mounted quite as secure as the stock one, so if it holds up it will be good.
2565601
Part fit just fine but a little disappointed that the pictured item is not what I received. It did not have the words or or decals the way the original has.
909513
This is made of thinner, softer plastic, not the same as OEM material. It arrived folded for ease of shipping, but also created creases that don't make it installed nicely. In general, all the screw holes are at right locations. But if you look at the edge where the wheel well meets the painted body, you can see small gaps and seams that are not compliant to the contour.
3103595
These are certainly not OEM-quality. Although they fit correctly, the two parts weren't a matched set (looked like different manufacturers) and their power is anemic (motor struggles to raise window).

Update after 1 year and 6 months:

The low quality caught up to me, and the plastic cable retainer broke. Minus another star.
1004330
Looks great, but doesn't fit EXACTLY as OEM product would.  BUT you get what you pay for.  For the price, you can't beat them.
2938446
Certainly not OEM but if you add spend a little extra on OEM stickers for the center they look decent.
4424280
Blade s cut ok. They are not as wide as oem also the center hole is not squared out like oem, have to tighten them very tight so the hub doesn't spin.
2655589
Hard, stiff. Functional, but not nearly as good as the OEM mouth pieces.
2722075
I purchased this due to my original piece had the rubber seal around it come off every time I would vacuum. It states that it is an original Rainbow part but I don't feel it works as good as my original did and it also doesn't fit my hose as well either. For the price it's of good quality but I do not feel that it is an OEM as stated in description of the product.
4757350
Fit well and easy to install. The quality in below OEM in construction. The heating element did not cover near as much area on the back of the mirror and the view is a little distorted. Not unusable but definitely not as clear as the original. It works okay for the price.
1862897
Not really an OEM replacement part.  One of the wires is stretched tight, but it works and the price was good.
1337166
Not a direct OEM fit, does not fit perfect. I was mainly upset because the grill was partially broken when I received the item.
737428
Pretty easy to tell it is NOT an OEM part when you get it in your hand. Made out of lighter duty plastic than the originals and the circuit board under the buttons is just slightly out of alignment ... just enough that you are pushing the buttons in funny areas. WAAAAY shorter range than the OEM part.