It's not the first time I read a review from somebody, "it's great!", they say, and immediately after they start listing all the things that are not in fact great.

Reminds me of that meme that shows Brits using "it could be worse" to mean anything less than average, and "not too bad" for everything else, while Americans say "awesome!" for any kind of sentiment, good or bad.

I'm not saying OP is American, just that adjectives in reviews have lost most of their meaning.