This is huge soooo huge but i haven't seen a 88 keyboard that doesn't fit.
The handles are well made and seem to be able to handle the weight with ease, though your back may not. The pockets are so big i was able to fit power cables, foot pedal spare set of clothes and a wash bag in them when using them on a gig across town. Epic.
A good amount of padding but its not a hard case so it won't protect your weighted keys if you put heavy stuff on top of it, but its more than enough to protect it from knocks and bumps.
A really good case