I worked on a store that was hosted at Mosso. I'm very uneasy with that environment given that it's Windows over Linux, and therefore it adopts the Linux permissions instead of Windows.  Maybe someone who is more comfortable with the Linux world would present a different view, but I really felt somewhat at risk not knowing if the resulting permissions represented any sort of security opening.  Perhaps I'm overreacting, but I tend to err in the favor of caution, and that environment simply makes me uneasy.  I just don't take projects that are hosted there any longer - it doesn't seem worth taking the risk in case something goes badly.

Now for the bad ... 

As neat as it is, there are some intrinsic problems that arise namely with the permission stacks.  Linux and Windows use two entirely different methodologies when it comes to permissions.  Linux uses Change Mode (CHMOD) permissions which are not compatible with Windows permissions (apples and oranges).  ProductCart and at least one of the EI addon modules are dependent on having the "Windows" permissions set properly.

 

Even though you are running a virtualized version of Windows, it is not possible to set Windows File/Folder permissions in the Mosso environment.  Many users, and myself when I was testing their service, have had problems getting the permissions set correctly.  What will typically happen is you will have to do a combination of setting CHMOD777 and working with the techs at Mosso to get it to work without error.   There is another problem with Mosso and that is with ASP.NET which also comes back to the permissions.  If you are ever thinking about running the QuickBooks Synchronizer product, the Mosso environment would likely not be the best place for that.

 

Do not get me wrong, you can probably get it to work, but not without some effort.   My own experience with Mosso concluded with low overall scores on speed, performance, and reliability. 

 

Bottom line is that as cool as the concept is, I do not recommend Mosso for any mission critical or web store environment.  Clouds and 'Windows on Linux' have too many problems and too many hurdles to overcome to be considered mainstream at this point.