Testing now. I really like that you have a NoJS version. I recall that another mixer with the same slider setup you have required JS to work, which was really disappointing and bad for privacy. It's pretty simple to switch between both versions by changing "?nojs=" in the URL, but it would be nice to see it added as an option. Some people prefer typing in values and not use sliders. It seems like the NoJS on your FAQ is broken. Only the first question tab is open, and clicking on all others do nothing. This was tested using version 8.0.1 (based on Mozilla Firefox 60.2.0esr) (32-bit).

I would go over your FAQ and spell check/grammar check it. Some sentences are in poor English, which doesn't drive a good impression. For example, you aren't capitalizing the word "I".

When going through the mixing process, the delay has to be in round hours. I've tried having a delay for 16.7 hours, but it's rounded down to 16 hours. This doesn't help with privacy, and I would change it to allow selection by the minute. I've sent my funds to be mixed with a delay, and will update my post once I receive the funds.

edit: Got my funds. 5 hour delay for mixing gave a 5 hour + 30 min delay based off of Blocktrail times.