The first IDPA match I shot was back when it first started up. Back then it was more of a "run what you brung" kinda thing with the idea being you shot what you carried, and not the gaming that invariably invades all competition/training.
I used a 4" Colt Police Positive, since that's what I had on me at the time. I didn't even have speed loaders. I just loaded loose rounds out of my pocket. Needless to say, reloads took forever.
Still, I place in the middle of the pack. Many people that were carrying autos had failures that they simply didn't expect, which tied up their guns and killed their times. The old Colt "D" frames are nice shooting guns with fast lock times and always naturally pointed for me with the right grips. You can really make quick holes where you want when you have a revolver that truly fits naturally.
To be honest, I carried a Detective Special or Cobra for many years, and now a 642 and I always shoot a revolver when I go to the range with anything else. I probably shoot my 3" Model 64 in DA better than I do most autos. At least that's what the targets have been saying lately.
Once you have a revolver figured out, you can do some good shooting and enjoy it.