I have fallen in love with SAM. I did not boost level it though, so I didn't feel it was tricky or difficult to learn because I was introduced to the skills gradually. I would say that SAM is fairly easy to use, but more difficult to master and use most efficiently. I like that you have gap closer and jump back, being melee dps, those skills make maneuvering tough aoe mechanics a lot easier. Hopefully you find one you like though.