How ecchi are we talking? Like, Cross Ange tier ecchi? Ecchier? 2ecchi4u?
3ecchi5Liamv2
Haven't seen Cross Ange, so I can only give some examples of MdWnKS ecchi:
I've only seen the first two episodes for now, so the above list might grow. First episode is pretty harmless, really only thing you saw was female body contours and a bit of skin and all of it played for laughs. Second episode started with something that would make Liamv2 patent a new shade of red most likely and went on to progressively go full throttle. Also played for laughs (and it really was that dog that selled it, just ... that dog!).
Looks pretty harem'y, so if that's something you don't like, the show may not be for you (again, keep in mind I've only seen two episodes yet, my opinion isn't well informed).
But it's positively hilarious. Part of why I stop watching for now is because it's three in the morning over here and I don't trust myself to keep my laughter down to reasonable levels (the other part being that I still haven't slept since I came back from the nightshift ...).