Anyone ever purchase one or have comments on it?
Looks like it'd be a good deal.
Here is a Hoya one that B&H offers
Filter Kit

 

The UV and the CPL you could use, the warming filter can be done in post. But the quality of the filters in that kit are lower than I would use. That's about $35.00 per filter, not something I would put and a lens using a digital camera. You want filters that are coated for digital cameras. Hoya Pro 1's or Hoya HD's filters.