I've tried the 16" and 17" crashes and the 10" splash from the Zultan Aja series and I must say that I've got close to no complaints considering their price.
The sound is not as refined as the expensive series from the reknown brands like Zildjian, Sabian, Paiste etc, but you can get these at a fraction of the price.
The price might make you think otherwise, but they can hold their own in a live or recording setting since they sound like actual cymbals and nothing like the cheap brass entry series and probably better than most of the cheap bronze series as well.
Now in particular about this 16" crash, I would call it a great all-rounder since it can marginally handle heavy music, but since it's a 16", it isn't overwhelming in softer settings as well. It makes a great starter cymbal if you can only afford one crash (or go for the 17" if you're going to be playing heavy stuff).
Sound-wise, It doesn't sound as bright as a 2002 or an A custom, but I'd say it leans towards the brighter side of the spectrum (I wouldn't call it dark).
If you plan to pair it with another crash, I would suggest the 18", since I also own the 17" and it sounds kinda close to this 16". The 16-17 work together, but I would prefer a more distinguishable difference. For softer stuff my guess is that it would also work well with the 14" crash.
Finally, durability-wise, it seems to be holding up quite well after 1,5 years and keep in mind that its main use is in live settings and rehearsals by many different drummers. It doesn't get a daily beating, but it has seen some heavy use for certain and it's made more money than it cost.
All in all, I'm very happy about this purchase and I would probably get another one if this eventually breaks.