Only got myne up to 10 real quick but so far i liked em pretty well. Only two complaints.. One they feel slower then my zombies.. lol And Two using the merc upgrade is kinda cheesy.. But all in all its not bad.
(Bodyguard rocks, tho it promotes mm's who stand there doing nothing on teams insteed of having there pets attack single target after target its still a power that will be usefull at times. Would prefer it to be on all the time tho cause i use attack all on every target but ill learn to let em just do there thing now i guess...

)