Downloaded it Friday night! Could never figure out why people were so infatuated with this game.. I finally understand! So much fun; and the beta client runs really well. Just takes a long time to download everything.
The guy still deserves a lot of respect for what he did. He gave the Mac community a LoL client and this is only gave Riot a reason more to develop one in the meantime. I think the Boompjie client had quite a few people playing on it, in fact I had an older version and was playing on a Mac at some point (don't smite me) and played over 50% of my games on there. When Riot shut that version down they gave me a free champion bundle.