O.K., here's my never-humble opinion.
1.First, TRY before buying.
2. Gun manufacturers have spent million$ to make the autoloader as safe and reliable as a revolver, and they have succeeded, for the most part. My personal concern is, that having shot only revolvers for 40 + years, with the exception of a Ruger .22 autopistol, the transition might be a problem in a stressful situation.
3. Physical capability: It is difficult for me to rack the slide on some poular autopistols. (See #1)
4. I like steel J frame guns, because of the extra weight, but the original grips are small for me.
That is easily fixed by buying larger grips, or even a larger K frame gun, which are not all that difficult to conceal.
5. Don't buy ugly, even if it is cheap...you will not be satisfied. (Don't ask!)