Having owned a Robin DR400/180, I can agree this is one of the best 'simple' tourers - 125-130kts, fixed pitch, fixed gear and will easily lift 4 people and full fuel in its 4 tanks. Not many so called 4 seaters will do that. Only downside is not very good ventilation in hot weather and suspect eletrics, like most things French. But it will have to be hangared as wood and fabric. I have also owned a Piper PA24/260B Comanche, very fast- 160kts, 4+2 seats, almost impossible to over load and very comfortable to sit in and fly - I went all over europe in ours over 10 years ownership. Downsides - old, and will cost at least twice as much as Robin to maintain -- but what beautiful looks and handling -- See April 2003 Pilot mag. I miss mine very much. Now have RV6, so for two persons this is the way to go - LAA permit, 150-160kts. Lastly don't be fooled into thinking all four seaters are really 4 seaters -- check empty versus max all up weight and you will see most are 3 or 2+2's -- even Bonanza V35 in our hangar is not 4 seats with full fuel !!!!