Based on the quality of support I think they will have high retention. We’re currently a relatively small customer and the support has been excellent. I submitted a bug and it was fixed on our production account in less than two months. This included a step through on our dev account. It would have taken me two months just to convince Oracle and Microsoft that they had a bug.
I had a couple of other minor issues and got very good response.
(Small caveat that someone probably gets commission on follow-on expansion revenue, but not that initial subscription amount.)