All of the above! I only have Achimenes and a couple of Eucodonias and some hybrids of those with a bit of Smithiantha thrown in. I haven't ever tried growing them from seed. I've looked for seed on the Achimenes occasionally, but if there were any there my eyes aren't good enough to tell me.
I've been tempted to try Sinningias, but haven't yet.
I grew 2-3 Episcias for a while, but I like plants outside and only one of those could manage that.