I have enjoyed my flights on Polaris a lot. And I really enjoyed the Polaris Clubs.

On my TATL flights I rank the ground and air experience higher than my personal TATL (ground and air) experience on DL, AA, and AC. Although AC and the Signature Room in YYZ was pretty close.

And for those who think I must not have anything to compare it to, I also rank it higher than my experiences on TATL with Finnair, Iberia, BA, LH, LX or KLM. (although, to be fair, I had access to Polaris on my LX flight, but the seats in Polaris were much better).

I had a very nice experience with AA on a transpacific flight, and have enjoyed CX from Europe to Asia and Australia. But for TATL, my United Polaris ground and air experiences have been superior.