Reply to Denon CD Decks...anyone used em?

i've seen a few good deals on denon cdj's recently, and wondered if anyone has used them?

am i right in believeing that all of them have spinning platters (ive been looking at the 3000, 3700 and 5000 models)
as this is the main draw for me to get one as i come from using only vinyl. i've tried Pio cdjs like the 800mk2 and to me, it just felt like a big toy. not really a professional bit of kit (mainly because i cant get used to letting go of the platter and it just staying put lol)

my main issue is, the amount of features these cdjs possess make me believe their is more to go wrong in the future. can anyone comment on reliability and how well built they are.