The crash i still want is 4 times the price of this, and much prettier :) but for rehearsal this is usually my main crash. Even for some gigs this will be more than just adequate, only recorded them with room microphones and based on that i expect overheads would really show their versatility even more. The 16" to me fits the 'very good, for the money' description, and crashes really above its price when hit harder.
The 18" isn't just 'good for the money', it's simply very good.
It's a B20, cheaper than anything else and except for maybe the hardest of genres, (sound will not be the issue here but i think it is too thin to be bashed 'all' the time), it will do anything. Cheap stuff that's actually great, i love it.