If you're just starting out I'd probably go simple, and seat-mounted rather than handheld. I have a handheld one but it's awkward to use. Maybe you get used to it, but I'd rather have my ass washed than get in there myself.
I have a cheap Luxe 110 that I bought five or so years ago and it's been great. Just pop the seat off, stick the bidet in between the plastic screws and attach it into the water line. Instant anal refresh.
I will add that I kept the old shutoff valve from a diaper sprayer, as it has a metal ball valve and seemed way more trustworthy than the little plastic shutoff included in the bidet itself. But you can buy those at a hardware store for relatively cheap.