Okay but not as good as original
596611
I received the package on time thanks to Amazon Prime.  I was disappointed as to the quality of the replacements as compared to the original airstone but they were pretty cheap.
1883820
it's not as good as the original one I've seen, but it's comparable. I think it's actually a little easier than the original version.
1762759
Not as good as the original that came with the unit, but better than the worn out worm we had been using.
1855383
Not as good as the original, but if you're a moderately sized person and don't need the resistance of the original, this will be fine.
2876426
It works as expectected. The quality is not as good as the original. I don't think this is an actual Samsung product. The plug going into the phone is difficult insert. After just a few weeks that connection is starting to wiggle.
I'll use it for a spare, but I really wish it was as good as the original.
3533894
Not exactly the same as original but works, no complaints
3012444
Bought this with the hope that it would last considerably longer than the original battery that came with my HTC Incredible.  It is better, but not as much as you would expect with a 3500 mAh rating.  It and the case are thicker and a little heavier than the original but that is not a big deal.  We'll see if it gets better or worse over time.
4128198
Installed easy enough but the quality is not like the original. It is very thin and the water pools on top and does not run off. As the only choice I found so far it is better then the old nasty original but I would not buy it again.
3380163
Seem to work okay, not quite as long like as original to begin with, but last longer than my original after many recharges.
3740839
Slightly different. They work but not as good as the original equipment.
2148312
Just OK.  Does not come close to the original.  Should have put it to rest
34752
quality/fit is not as good as original, but works good enough. I've changed both my keys over to them and they look new again.
3379979
It fits well like the original but I'd say the original cleans a bit better. But for the cost comparison, I would still buy this generic version. It does the job well enough.
2283612
This bulb is not nearly as bright as the original.  It may be sufficient.  If you are looking  for something as bright as the OEM look elsewhere.
2350288
They do the trick, but definitely not as well as the original pads that came with my steamer.  They are not as hick and plush, which definitely has an effect of the steam hitting the floor.
4806109
Does not fit as well as the original one and allows the water to filter through too easily.
2795216
This filter is not as good as the original.  It collapses and seems to make the sweeper work harder.