I used Amuse too, but can't say I got too much from it. You have to decide on your goals and I'm happy enough if a few people hear my music. I can put it on Youtube too for free. Not really looked much beyond that.
I do think that Bandcamp is a good option as you can put stuff on for free and people can pay for it. They have days where there are no fees on sales.
RE: Music release apps and my upcoming release