Hello all - I have been using Atera since I first found out about it in March (I think). It's "okay" for what it offers. It's a fairly capable (building/revising all the time based on user feedback) RMM with alerting that has been great. There is no per-node limit so I install it on EVERYTHING. It is infantile in it's SNMP, but I think it'll get better as people request features.
There are times when I get some false positives regarding the check in of a node, but I think that'll work itself out as well. They have been super responsive to any requests or problems, and have regular webinars that introduce new features or help you pick a feature.
The RMM is fairly complete with the ability to track services, event triggers, standard metrics, and Exchange server out of the box. They started with integration to GoToAssist, but due to a poll are going to integrate to Teamviewer as well and in the future ScreenConnect. There is scripting and patch management right out of the box, so it really does do a number of things.
One thing that hasn't been mentioned before in this tread, though, is the integration of a complete ticketing system. The ticket system is really the "heart" of the offering I think (I don't really use it currently, but feel that is where it is the most mature). You can install an icon on every desktop that has an agent right from the console, which allows a customer to enter and view tickets. The ticket system tracks time to resolution, allows sending "how'd I do" requests, etc.. and it integrated with Xero accounting directly. I hope to roll it out once I get my butt in gear (too busy with other stuff currently).
I rely on Atera currently to provide me with complete status of my client base. Since I'm a single technician it's 89/mo and I have it on at least 100 devices. I have many set to provide uptime monitoring, which is useful to know about outages, and I have setup a few to monitor specific services etc.. You can also do MS licensing auditing, and it'll provide you with Windows and Office keys.
There is a backup solution at $.50/GB, so it's not the cheapest but it's all integrated. I'm using Business Avast, so I don't need AV included, although it would be geat if it was.
It is pretty powerful, but I think it's real strength is that it's growing with user input. Requests that I've put in, are responded to and I'm told whether they are going to be in the next release, or are in the roadmap, etc.. There is SNMP support, it's just not very plug and play (you have to know the OID and then have to setup a threshold for it - but it works for alerting, just no graphs yet). It's a clean interface, with a mobile friendly site so it works on my phone, although I'd prefer an actual mobile app.
Anyway - I have been using it a while and will continue with them. Any questions hit me up!
Good luck!