Product review (5 stars): Great icemaker makes lots of clear ice for a very good price.
I've not had any of the problems that others have reported.  I have owned this for 15 months now and use it continuously.  Here are a few tips:

I flush mine out with bleach water once a month.  Otherwise, it grows a clear slimy substance that makes cloudy ice (yuck!).

If you want thicker ice, turn the unit off, then hold the on/off button down for ten seconds.  The five seconds suggested in the manual is too short and will not increase the thickness of the ice.

Sometimes mine would suck air and refuse to drop more water.  Mineral buildup around the screw that is under the ice bucket causes this.  I just clean around the screw with a paper towel and more water drops at the next cycle.

Occasionally melted ice overfills the area under the ice bucket, causing ice to melt as soon as it is produced.  For a while I just scooped a bit of the water out to get it working again.  A couple months ago I found a better solution.  I got a stainless steel fender washer and put it behind the screw under the ice bucket.  I used a bit of plumbers putty on the back side to keep water from leaking around it.  Now the water fill stops at the washer and this problem has gone away.

If the ice gets really thin, the condenser coils probably need the dust blown out.  Air is pulled through the front, so you cannot see the contamination from the back.  I needed to clean mine out after a year.

I only use RO water in mine now.  The salt in softened water makes the ice thinner and builds contamination around the fill sensor screw faster too.

I empty all the water out about once a week.  That keeps the ice clear.  Clear ice makers flow the water over the cold plate and only the water freezes to the plate.  The contaminants stay in the water, that is until there is so much contamination that it cannot do that anymore.  Professional clear ice makers flush the recycled water periodically to keep the ice clear, but this one cannot do that.