I get asked about them a lot on my kayaking forum, if you are going to use them on the sea forget it.
I don’t agree, having owned a Sevylor Corrado/Scirocco (2 person) and Sevylor River XK1 (1 person). Both are sit-on-top style inflatable kayaks which help the novice escape if needed (roll it and you just fall out).
I’ve taken both craft on rivers, lakes, estuaries, in the sea (fairly close to the shore admittedly) and even the Menai Straits. No trouble. The hardest bit of the sea I find was when launching from the beach - time the waves or get wet, you’ll learn quickly. Once out past where the waves break it’s much easier. As with anything, plan, prepare, know the tides, wind direction and your limits. Let people know where you’re going and what time you’ll return.
Sevylor get my vote and the
Decathlon models get good reviews. Budget for a set of paddles and buoyancy aid too of course.