I have never heard of this brand either. I did find this link:
http://eclipsequilter.com/sitdown.html
Personally, I would stick with one of the tried-and-true brands such as the HQ Sweet Sixteen. Sometimes you can find them used in great condition, which saves a lot of money. Plus, if you ever want to sell it, the Sweet Sixteen would be much better known than the Eclipse, therefore easier to sell. Prices seem to be similar. Here is a link to the Sweet Sixteen:
https://www.handiquilter.com/machine/hq_sweet_sixteen/
What you want in a sitdown is good tension and reliability, plus plenty of harp space (space under the arm). You may or may not want a stitch regulator; many do fine without one.
Also, be aware that the rule-of-thumb is to spend an entire year researching and trying out quilting machine options before making a purchase. Yes, it's overwhelming at first; however, after you've done enough research, the best options for your particular situation tend to become clear. You really do not want to experience buyer's remorse for a purchase this large.