We only use Araknis and have since it came out. No major issues at all. Are there things you cant do with Araknis that you cant do with other products? Some say that is the case but there is nothing I have ever needed done that I have not been able to do. So, its a good fit for us.
Same with OvrC. Have seen lots of debates on it vs. other monitoring options. Again, it does what we need it to do. Having access via one site, one platform is a huge value.
We went the Unifi/AWS route years ago. Never again. Ripped them all out and replaced. Talk about a nightmare to manage. Not that it is bad, but all the hoop jumping to manage it far outweighed any advantages it had. Come to think of it, there were no advantages lol.
Ive used on 110 router. Didnt care for the 20 seconds it takes to save ANYTHING, even the tiniest of changes. We will stick with the 310, even on the smallest of jobs. By the time you add OvrC to a 110 you are at the price or more of a 300 series anyway. Have never used built-in wifi model. And wont, its not how we roll.