Looking for a little advice, I have an AT Pro at the moment and while it's definitely not bad I will likely want to upgrade at some point between now and fall. I haven't had it super long, few months but I've put in well over 100 hours already. If it were just me I would just keep the AT Pro for at least another year before thinking about upgrading but my dad also comes with me sometimes. He's hard of hearing so he struggles with Pro mode so the AT Pro works well since it offers pro and standard. But it seems silly to buy two of the same machine, especially when the Nox 600 isn't much more and has really good reviews. From my research it seems the 600 and 800 are basically the same just the 800 has the wireless Bluetooth headphones and a few "advance features". Are those features and the headphones worth the extra money? The only reason I ask now is because the 800 is back ordered everywhere, seems about a 2-3 month wait from most places. The 600 is in stock so I would just wait if I go with that but if I determine the 800 is worth the extra money if want to get on the wait list. Also, anyone who has used both the At Pro and a nox 600/800 any comments/opinions comparing the two would be much appreciated.