They're not the most life-like plants in the world but guess what: if you want realistic you really ought to get real plants. It isn't rocket science, right? None of mine were faulty though I did have to spend time teasing them out and the root-like extensions at the bottom needed trimming off with scissors: they tipped the plants at strange angles when left as they were. It's an easy job with half-way decent scissors.
They make a wonderful refuge for young fish so they are great for breeding tanks.
Dunno if I'd recommend them for proper, ornamental tanks, though. They're just not my thing in anything other than a working tank. But that's just different strokes - in the end I have to say that I'm well pleased with them.