You guys are amazing and can't wait to see your new updates. Please accept my below humble suggestions for your future progress.
1- Render % - I think it is kind of laggy sometimes but generally works fine. Feedback during the render is cool and make me addicted to watch it.
2- Render Tiles - It is not top urgent wish list at the moment but it could be nice to watch render while it is processing.
3- I am not totally sure but, i think we can make render unless all computers are in same server? what if i am at home and want to use laptops in my office to join my render party at home ? Is it possible ?
4- Interface - I like interface. K.I.S.S - Keep it Simple Stupid.