We've stayed at several hotels in Schladming, including the supposed "best" one the Royer. However, Id say that if you're looking for a hotel that is clean, friendly and central; this is your best bet. We will certainly stay here again.
It is old fashioned and could do with redecorating and, yes it is in the centre of town, so it can be a bit noisy, but the staff are incredibly friendly and helpful and it's only about 4 minutes stroll to Planai gondoler.
The food is OK but a bit limited and there isn't a proper bar: just some Formica stands at the end of the restaurant but it's nice and warm and gives good service. My only criticism is pork for pretty much every meal!
My advice would be invest in a ski locker so you don't have to walk back in your boots.