Let me start by saying that most likely you will get a lot of negative comments on the All Star buses. I don't know what people have to complain about....the All Stars are no better or worse than any of the mod resorts. The mods all have multiple stops.
So...I've stayed at all the value resorts with only 1 complaint about the bus service(it was at POP though). At ASMu you are the second stop on a shared bus...it's a max of 3 stops. So with being stop #2 you will only make 1 additional stop before heading to your desination and the same goes for coming back. However, more often than not it is NOT a shared bus. The most common time to share is if you are traveling at an off peak time of the day or when on the DTD bus.
The only thing that is worthy of complaint is that the bus lines are not covered.