It's different, but nothing you can't get used to. We humans nearly always fight change, but that's the way of the world. The state map feature is a bit cumbersome, but still useful.
I don't get any pop up ads and I'm not using Firefox or the other ad blocker.
Not sure why someone said they dropped campgrounds. I checked the listing of my previous reviews and found them all there. There were even some parks that were last reviewed in 2011 and those were still there. Maybe some real old reviews dropped, but I haven't noticed any problems thus far. I like RVPRs for my research.