I had a Lancair 320 with an IO-360 modified to 205 hp. It would cruise at 215 ktas at about 12gph. Mine had the older smaller tail that made it a bit unstable. It also had the older smaller landing gear that made its breaks not very effective and the tires were very small, about 10'' I believe.
I would suggest a slightly newer model with the "outback" landing gear conversion.
Other than that, I loved the airplane. It was fast, docile, and it would blow the doors off an RV-8 and most Glassairs. Plus I think the Lancair is just about as sexy as they come. I do like the F1 Rocket, but the price is sky high...
Ive heard good things about Glassairs, but Ive never flew any.
There are alot of rumors about the Lancair regarding design quality, safety, etc... Most if not all are completely false. It is a great airplane that you will enjoy. Feel free to PM with any questions,
CB