For the love of all things Holy, DON’T get rid of classic!
Don’t like the new one at all.
For one, when you switch back to a main forum after reading a thread, the new version doesn’t show different fonts to indicate if there has been a new post on the threads under that forum since you last read it.
At least the classic shows a bold-type font if there has been a new post, and non-bold if nothing new is there. Keeps you from having to waste times going into threads to check for new posts.
Plus that new look just gives me seizures!