Ok guys. Here's my 2 cents: I'm a longtime Tyros owner (2-1/2 years) who's been professionally gigging with it for over 2-1/2 years & haven't yet experienced any problems or need for repair, other than the USB port hardware update performed by Yamaha USA & repair paid by them (under warranty) even though it was well over a year after I purchased the KB. Both my Tyros as well as the PSR2000 (my previous Yamaha keyboard) though not as solidly built (plastic body vs metal body) continue to withstand the rigors of frequent gig transport, I just need to take a little more care in handling and transport & though I certainly don't play the keys timidly whatsoever, I don't BANG on the keys either. I find it well worth the extra care given to my kb to gain the tremondously lighter weight up to 25 lbs lighter than the top of the line model equivilent competitor's arr kb), a big plus especially for us one man band performing musician-entertainers. I haven't suffered a sore back (resulting from hauling a kb) in years now. Knock on wood. - Scott