I have CAP kettlebells. My biggest issue was finding a kettlebell I could comfortably wrap my hands around without the pinkies being crowded. I also didn't want kettlebells that flaked and I wanted a nice feeling handle. Lastly, I didn't want to pay a lot of money and discover kettlebells weren't my thing. I have a 13 pound and a 20 pound. Haven't used them extensively yet, but they seem to do the job.
I would look into getting kettle guards too if you have small, delicate wrists.
I plan on getting the SUAT and Kettlebell Body combo