I’ve really enjoyed Arc. 
I like how they’ve constructed profiles that can be siloed. I like their split screens. I like being able to almost full screen websites really easily. I like a lot of the little ux things they’ve thought through. Their mobile browser onboarding is so good. 
I’m also a huge fan of using Perplexity in Arc. So much use haha. 

It does take a lot of cpu like chrome which sucks, and there are some small cache/background refresh bugs that are annoying.