My 20 was well behaved, but if you have the $$$, go for a 27.

+

Much easier for us older folk to rig
Automatic Hookups
More margin in limit airspeeds

-

Smaller O2 bottle courtesy automatic hookups
Carbon fiber fuselage incompatible with internal transponder or flarm
antenna

When buying a single seater, be extra cautious if the seller is heavier
than you. I
took several lead plates above the tailskid out of the 20 after doing a W&B
and
calculating where I wanted the CG. At 80% my 20 was well behaved.

If you happen to get bit by a 25+ kt gust, you may discover some unusual
attitudes that you can't reproduce in better behaved air.