Quality is good, and there are plenty of rooms and pockets to suit most need. Have had the case on many bike rides, and it's spend a lot of time in luggage compartments of cars and busses, and nothing has broken or come loose, so quality is top notch.
Do keep in mind though, that two guitars are very heavy, so if you need to eg. ride a bike to hearsals, this can be a strain on the back.
There are however no alternatives to carrying around two guitars, other than carrying one in each hand.