I'm no expert, but I've been growing African Violets alongside my Phals for about five years. They seem to like the same growing conditions, and they're almost constantly in bloom, so it's nice to have flowers at times when the Phals are between blooming. Mine are all on a kitchen/dining table, in a south window, with sheer curtains drawn when the sun is shining in. Temps in my home range from 68F to 74F, depending on time of year.
I happen to be a top-waterer. Similar to my Phals, I will water (room temp tap water) when they are approaching dryness. For the AVs, that is when I can put my little finger in the soil a quarter to half inch and not feel any dampness. I do dab off any water that gets on the leaves, but every time I do that, I can't help thinking to myself, how do these plants survive in nature, getting rained on?
I've been using either an African Violet mix or an all-purpose mix, but I cut either one heavily with perlite to make the soil more airy. I often see it recommended to repot AVs every six to twelve months. I don't generaly do it that often unless it's a young plant that is growing rapidly. Have patience with your cuttings. It does take a long time. Yours look great in the pics!
+1 on the Violet Barn. I learned a lot from their site when I first got my AVs, and I still think they're a great resource for AV information.