Well I just bought my very first airplane and it is this M20J. Some of the things that drew me to this model are the speed, economy, build quality and solid flight characteristics. I am a larger pilot at 6'3 and 250 yet feel quite comfortable in it. Seems to have more room than the Arrow I had flown regularly prior to buying this one. I have a fair amount of time in a G1000 equipped 182 as well as a Diamond DA40 which is closer to the Cirrus you described. There is certainly more room in those two planes, but I am really drawn to the speed and beauty of the Mooney. The 201 is a solid IFR machine as we experienced a lot of weather bringing her home to Las Vegas from Palm Bach Florida. You can check out my flight stats on flightaware.com . Put in N5760Y and you will see that flight. It is broken up into four legs. Palm Beach to Mobile Alabama. Mobile to Addison Texas. Texas to Albuquerque New Mexico. And final leg to Henderson Executive (Las Vegas). We of course had headwinds the whole way but made really good time. We flew a total of about 12 hours over two days. Average fuel burn was 9gph. Hard to beat.
I would tell you this. Are the quarters smaller in the Mooney? Yes. But with that kind of speed and efficiency it is a hard plane to beat.
The range is excellent. The speed is great. The plane is beautiful. I am in love with it. I don't think you can go wrong with it.