We certainly have! We had bad experiences with a hosted Sharepoint solution and staff and students found it ugly and unintuative. Sharepoint is brilliant with what it does well; tieing in with office and document management. Where it fails is in the educational aspect; constructing and assigning lessons and providing opportunities for feedback.
Out of the box Frog works brilliantly. The UI is so simple to use that even less confident ICT users on our staff body had logged into Frog and made some pages before we had launched! We were further ahead in 2 weeks with Frog than we were 2 years into our Sharepoint 'experience'.
The key aspect is the drive from your SMT/SLT. Without it any VLE/LP/LG is likely to fail. Some schools management see online learning as a tick in the box to satisfy government demands. We are fortunate that our senior management can see the benefits of using it for internal & external communication (parent portal) and developing the methods employed to deliver education in the 21st century. Seeing beyond the high initial start up cost is imperative,as in the long term, the training costs will be minimal (because it is so easy to use and the support is great) and the buzz it creates amongst staff, students, governors and parents is infectious.
At the end of the day, you get what you pay for.
