I have always used Tropic Marine, and had great results, tried Salinity once, hated it. Went back to TM, and had some issues, then switched to Kent, and haven't looked back. My only complaint would be the low KH, but you get that with most of the salts out there.
Yes we use Kent and like it. All salts have some good parts and bad parts in my experience. Kent might be ok in it's dkh readings, good at calcium but it is consistent and we just adjust it accordingly. The best part of Kent salt is the price!