It's essentially top of the line, and a good deal in the sense that you're getting a reasonable discount compared to buying all the parts new.
However, It's kind of... unnecessarily expensive. I mean, nothing is totally a waste, but it really is a super high-end build.
Example: You're not gonna see a huge difference by using 3733 MHz RAM instead of 2933 MHz RAM; it's probably not worth the extra $80.
You probably don't need a 1300w PSU; it's another wasted $100.
You probably don't need that CPU cooler when a high-quality air cooler can be as quiet and just as cool, but cost $80 less.
The 7700k is the king right now... but tomorrow (as in, October 5th), you can buy an 8700k for around the same price - and that 8700k is a significant upgrade thanks to the extra 2 cores and 4 threads.
So, if it were me, and I had nearly $2,000 to spend on a PC, I'd really consider if it is worth it to buy a used PC that is somewhat made-up of unnecessary extras. I'd almost assuredly go for new parts instead; you'll still be able to get 16 GB of RAM, a 1080 Ti, an 8700k, a case/mobo/SSD/HDD/PSU/fans/etc. I will say, as of today, it's basically the best gaming PC you can buy. The problem is the timing; tomorrow, you can get a much better CPU that'll last you for quite a few years more than that 7700k will. That makes it really hard to justify dropping $2,000 on what is essentially one day away from being outdated hardware.
Thanks for the advice. Ill probably just upgrade my existing PC. Im still waiting for a 4K GPU to become affordable before I take the plunge.
If you are interested in ultrawide, their deal on the Acer monitor is a good deal though. Hard to find it cheaper than that.
Does the monitor do 4K and HDR?