Sure we did
If i were to do this myself i would use enginneered bamboo
and install it as a floating floor.All you would need then is a 6-8 mill vapor barrier on the concrete.Alot more cost efficient with a low risk of failure.
Absolutely the best way to do your floor over concrete.
Check your floor for level you dont want a bunch of dips(low/high spots) in the concrete.It doesnt have to be perfect , laminate is very forgiving the flatter the better tho.Use self leveling floor filler/compound to level low spots out.
Hopefully you wont have any high spots that you have to grind down.
Use a very good vapor barrier /overlap the barrier 3 feet/tape your seems
with a vapor resistant tape/ Use a strong quality insulating cushion underlayment.Alow your floor room to expand and contract(recomended expansion gap is in the instructions ).And you wont have any problems.The directions are included in your floor packaging.
A very simple way to test for high levels of moisture cut a piece of the vapor barrier say 4x4 , lay it over the floor and check it for sweating in a few hours or overnight.The moisture will be under the plastic.Very little is a good thing.