Hi mate,
The post you quote from me is my last decision about this product, I think that the reactor is very good item for DIY users and / or small tanks, however I do not think that the reactor is good enough for size of your tank as it can hold only X amount of CO2 to Y flow from your filter.
Yes Up aqua atomizers are pain, however (what I know) Intense does the atomizers as well with stronger plastic. Unfortunately you are not able to put those apart but still able to clean them.
To be honest I have had the best result with atomizers over standard diffusers.My atomizers are on inlet so no mist coming out, however some ppl had problem with this as you might already know. I also found that simple bleaching the ataomizer is best way to clean it. I have main for almoust 2 years and still useing it. However do not forgot to put it to vinegar to neutral the bleach after cleaning. If you want to risk it try the atomizer on Inlet but monitor your filter. Also the atomizer will get dirty quicker this way. I need to clean my atomizer at least once in 2 weeks this way.
Regarding the reactors unfortunately there is no "good" reaactor. Many of those reactors are internal and the few which are external are 12/16 and in most cases not perfom good enough for users with high CO2 injection. I tried the old type of the Ista reactor as well and this just same thing but bigger....
If you are capable of some DIY there are few good reactors in the DYI section here.
Also if you would like to give them try let me know I can sent it to you if you cover the postage and you can give it a try but as I said do not hink it willl be good enough for size of your tank.