They don't make amazing RPGs, but they do make fun and entertaining ones, at least to me. They tend to be moe filled games that fall into a certain group/style of games. If they don't fit your interests then yeah, they're not really going to be for you. But I'd hesitate to say they're horrible. The Neptunia series specifically is highly entertaining and always makes me laugh. Compile Heart mo tends to be comedy RPGs or parody RPGs at times and being that such games are pretty rare it makes for funny and amusing entertainment over super serious games.