What do you want it for? Some context would help.

I don't know that exact model, but if you need short depth / rackmount / 10gb etc then it looks good. Its also over a grand, so if you prefer to spend less $ and can handle gigabit and perhaps a different form factor you have a lot more options.

Much like the "which router is best" question that's a very open ended question with no possible answer.

Whether it's any good or not is going to depend entirely on what you require a NAS for.