I did my commercial in one and have maintained or flown several since. It's a Bonanza with two little Lycomings. The "Simmonds" fuel injected models (from memory, I think it's 1960 and 1961) are unobtanium and to be avoided. The earlier carbs or the later bendix injection are just fine.
They really behave like a H35-N35 bonanza and are delightful. The second engine costs you about 3-4 gph over the single. They'll wring out high 150s or low 160s knots if you run em hard. I've seen plenty with way-over-TBO lycs (like 3500 hours), so they go the distance if cared for.
Condition is ALL over the map, worse than Bonanzas in my opinion. There are plenty of trainers out there that have been abused their whole lives, and show it. There are also some amazing creampuffs out there.
Insurance dislikes them if you're considering them as a commercial trainer. For personal plane I think they'd do great. Slower but more comfortable (IMO) vs a Twinkie which is its nearest competitor.