I started using it for an old personal startup and then began using it as a base solution for almost all of my projects (I provide web solutions to agencies, so I did lot of different solutions, from multivendor websites to institutionals', all using Mighty/Cobalt).
I have experienced its quality, surf the code, change it, customized it, talked to support frequently. All is an awesome experience.
Frankly, I think this solution is great and I haven't had second thoughts on supporting the team behind. I certainly became a great fan! It's amazing what you can do with this extension and a bit of imagination!