I find benzos make me relaxed and happy in high doses, and at lower doses are fantastic for the booze heebie geebies, which I only get with a litre of spirits (except Gin for some reason, which doesn't seem to bother me after I've been on it for a couple of weeks or so).
I took diazepam in fairly high doses for a year for anxiety, and the withdrawal was horrendous - very bad anxiety, and embarassing facial twitches when I had to talk to anyone - that lasted for well into 10 weeks, and was only quelled by drinking.
I didn't get much off it when taking it just for anxiety,other than a calming effect. Useful when it lasted, but paid for in withdrawal in a roughly equivalent ratio to its beneficial effects when used long term. So I switched to beta blockers which worked much better for A.
Temazepam and xanax were useful for both sleeping, anxiety and peeve horrors.