Marin has good strength, she can pound all the shot back really hard. but she has a few weaknesses (that i can see so far). she back court under pressure retrieval from both side are weak. esp backhand, all she can do is to try clear it which always come short. LXR is smart enough and just waiting there.
Marin has a very aggressive style. more aggressive than most WS player so far. however, she needs to mix aggressiveness and control. a good fast control player will be able to move her around like a mad bull. so far, i don't see that.