Autotask PSA

We tested several solutions ranging from short-term trials to extended 6-month production runs and found the other solutions to lack what we needed. Autotask PSA was a more mature, thought-out, and developed product that had everything we needed in a single solution. Over the years, Autotask remains a popular PSA for products to develop API integrations that futher enhance the PSA, while the other solutions do not typically have the same integration options.

Atera is an RMM first with PSA features so it falls short of a PSA. The essentials are there for a fledgling MSP, but for more advanced ticket handling and contract management, it falls short. When I used Zendesk at the beginning (about 10 years ago), it was really only a ticket system and I used a Freshbooks integration for time tracking.

Datto Autotask is much more complex than Atera's ticketing platform but is much more customizable.

Datto Autotask PSA is probably the best all-in-one platform for MSPs. It's targeted and designed specifically for MSPs, whilst most service desk software/PSA is often just general service desk software.

Both are very good, but Datto has better customer care in my opinion.