Don't know much about the lacrosse (but it sure looks pretty!).
We have the Sprinter 300KBS 2009, and we LOVE it!! It was our first foray into TT land and we have zero regrets. Other than the microwave zapping out in the second year, we've had no issues at all.
The front kitchen is glorious with all it's counter space, cupboard space, and functionality - couldn't ask for a better set up.
The huge king bedroom is really well thought out, and has plenty of storage space for lengthy trips, as well as the vacuum cleaner and other supplies I like to keep indoors. The extra door is great for when we have overnight guests, allowing them to truly have their privacy as we have ours too.
The bathroom is clever too, again allowing for private access from either the bedroom or the living area for when we have overnight guests - plus I really like the private "loo room". ๐
The fact that pretty much every space can be fully accessed even when travelling and the slides are retracted is pretty handy - had to park it at Walmart overnight once, and they didn't want us extending slides - no worries... EVERYTHING could be accessed... bed, fridge, stove, bathroom. ๐
As you can tell, I'm a fan of the 300KBS... the things I would want changed are things that have been adapted in the newer versions, including more lino from the entrance to the kitchen, and the enclosed propane tank area at the front.
If knew how to post pics of mine, I could show you the decor... it's very tasteful and not that "cheapo barn look" ๐
Regardless of which brand and model you go with, you're likely to find people who are pro or con, so keep researching and eventually go with the one that appeals most to you. Good luck and happy camping!