If you're travelling on a budget and have you're own transport, then the RV will suit you fine. But be warned, the space is VERY small. There were two of us and it was quite cramped, so if you've got more than that, I would reconsider. You'll also be about a 40 min drive from the touristy part of LA (aka Hollywood) if that's something you're looking to do.
There is AC, but it is extremely loud, so you might want to think about bringing ear plugs if you want any form of comfort during sleep in the warmer months, as it gets HOT in there.
The shower has already been mentioned on here a few times, but yes, it's not gonna be the best wash you've ever had and you certainly wouldn't want to be an NBA player hahaha.
Parking can be a nightmare so just be prepared to walk.