It is definately worth the experience. I'll try almost anything once.
After having done one and looked or been asked about 4, I'm not so sure if I want to do another, and I definately wouldn't do it free unless it were a charity case.
Now is also a time that you will get a most likely swarmed hive, so the brood and bees will be at a minimum, equaling a small weak hive.
I have a pending request from a store owner who has had bees for some time in his roof, they've been exterminated twice in the last 3 years and still "going strong". Who knows about mite resistance, but maybe I can get some pesticide resistant bees!! No more orchard kills!
Better to collect swarms, they are much much easier!!