I am not a professional mandoline player, I use it only in some songs (usually I play guitar), therefore it perfectly fits my needs for acoustic (unplugged) use and also for small gigs.
No hum from pick-ups, overall good sounding instrument, but bass frequencies could be more fat, but maybe it is a matter of taste.
Ibanez has always good quality products and this is one of them. Good value for money. Maybe not enough for professional, but perfect for beginners and I guess quality and sound is totally enough if you use it as your second or third instrument.