There is sound advice here, but don’t let anyone talk you out of getting your plane.
My experience is this:
I learned to fly in 11 months, pushing hard. At first I couldn’t handle the radio and taxiing at the same time. My “Envelope” began to expand, as I learned more and got more experience. I soloed in 14 hours, and got the PPL in 55.
I had 67 hours in my log book therefore (the others was just logged business trips in helicopters that I logged as PU/T) when I picked up N147CD
I got my SR20 4 weeks after I got my PPL. I had only flown once between my Skill test and me owning N147CD.
My first flight, was like learning to fly all over again, I was not sure if I could control the thing in flight and nothing was working. My instructor said “Let Go”, I did and the plane flew perfectly. I was over controlling her.
It took me two days flying circuits and stuff with an instructor, before I was totally comfortable in the plane. My “envelope” expanded once again.
The question is once you get your PPL, do you want to stop learning? Probably not. If your attitude to staying inside your ability/comfort envelope is mature, you have nothing to worry about with an SR20. In fact you will be safer and better.
My envelope expanded with my plane, I took people with me for my next 7 hours or so of flying. I did’t try my first long solo cross country (London/Glasgow) for 4 weeks, and then spent a night in a hotel in Liverpool (half way) because it was “Misty” over the water north of liverpool, and I was worried I would loose my horizon!
I got there the next day. Took someone with me on the return trip.
That was all a year last April, now 14 months later I have clocked nearly 300 hours in my plane, got my IMC rating, my night Rating and am about to be FAA IR rated.
I carried on learning and expanding my envelope. I can still Taxi and use the radio at the same time, so I have lost nothing. If I had delayed getting my SR20, I would not have had so much fun, or learned so much so quick, and would never as been as HAPPY.
Just have the right atitude to safety, learn the systems in the plane, slowly expand your comfort zone, an SR20 is nothing to be afraid of for a new pilot.
And its a great platform to get IR rated on. Go for it.