I've used salesforce as a development platform before, and still do not understand the hype that surrounds it within enterprise. I found that it actually slowed down development, costs where sky high and constantly worrying about rate limits and working around the system.
The only people who seemed happy was the salesforce sales guy and management who got the pitch from them.
If it makes you feel any better, we went with SugarCRM instead of Salesforce, and the primary non-financial reason was exactly this: my team actively pushed against having to create interfaces to and program against Salesforce.
I am a daily end user of Salesforce, though I'm not in health.
It is a terrible platform. Either this stuff is really hard to get right, or Salesforce suck.
I think Salesforce caught the "cloud bubble" at exactly the right time, it was all hype with very little substance. However that led to sales, and now to ongoing bookings because customers are locked in.
For anyone seriously using Salesforce, leaving it would be have more to do with business politics and finance than any sort of technical merit.
The only people who seemed happy was the salesforce sales guy and management who got the pitch from them.