we are considering using freeside, anyone have experience with this platform, or another system they are happy with ?   

Everyone knows I love powercode and highly recommend it.

I did try freeside and it took too much to set up - though it is very very functional.

You may be best to pay a freeside consultant to set it up for you rather than trying to do it yourself. Documentation 2 years ago was very limited or non-existant.

Sonar Software is a new start up with the creator / designer / developer who built Powercode. 

mikrowisp option is one power code , 1.40 per user , rather than win blade company , something crazy .