I ment "Which UMAC school are you looking at?". The quality of classes depends upon the instructor, not whether it's a "McDojo" or not. There are tons of "Premiere Martial-Arts Schools", some offer Krav Maga, we (the IKMA) have two very high-quality instructors who teach out of a "Premiere Martial-Arts Affiliate". Some of the groups that make schools get labeled as "McDojo's", are simple groups a school can affiliate with which just helps the school with advertising and website design, etc.
This UMAC group isn't training people in forms of Martial-Arts, they are just a networking/affiliate group to help schools survive. For instance, the instructor at this UMAC school could be training under Commando Krav Maga, Krav Maga World Wide, the Israeli Krav Maga Federation, the Israeli Krav Maga Association, Krav Maga Federation, etc. Regardless of whether or not it's a "McDojo", it's the quality, and credentials, of the guy/girl teaching that should matter, and until I see who this person, and what their background is, I cannot give advice one way or another.