It is a scalable solution. I have yet to have a scenario regarding automatic scale and if there's an increase in resource requirement or need. We have yet to have that scenario. We have yet to test that. The scalability was more than manually adjusting and increasing whatever I had to do.

I rate it eight out of ten.

The scalability is good. 

In terms of scalability, Jelastic is very good.

The solution is scalable, we currently have a small deployment with over 100 users. 

We had never had any scalability issues with Jelastic. We have monitoring systems for Jelastic and if the Jelastic cluster resources are near to capacity, we get a warning. We just need to add more servers/resources to it.