Hi,
I can strongly recommend, but I work for Leon Software myself, so it is not valuable for you probably
We have references from many clients. List of clients is on our web. You probably know people from those companies personally so u can ask on a private way, as you do not ask for advertising probably, just real opinions. Try Dave from TAG UK (he tested the system) or someone from Blink (current user). Any more help you can ctc me on tpazdej(at)leonsoftware.com
I hope I helped,
Tomasz