I don't want to sell them too short, as there are definitely more interesting things going on in the second two books (the second one especially, I thought). But they do still suffer from the limited POV (and maybe even moreso, since all the setup from Katniss's POV in the first book is actually reasonably effective and only gets more wearing as the story expands), because the interesting things going on aren't what Katniss knows about or is interested in. I perpetually wanted to be in rooms Katniss isn't in to know what people are doing, and I wanted to listen to conversations going on off over in the corner. There's a way this stuff could've worked in the hands of a writer who can do subtext or subtle hints, but it never quite works. There are many parts of it that I feel like are trying to say interesting things, maybe even trying to use this limited POV to say them? But like you say, it's like it was hard and complicated and was easier at various points to talk about how nice Peeta is or whatever.

But yes the romance parts are HORRIBLE, but at least you are prepared. If you go on, I will warn you specifically that the romance thread at the beginning of the second book made me want THROW IT ACROSS THE ROOM (I honestly thought it might really be faily fanfiction for a couple of chapters), but it becomes less prominent after the beginning.