Microsoft Dynamics is a great CRM. The only downfall is that the integration with Gmail is exceptionally poor. It is hard to find a good CRM system out there. We looked into some but were not able to choose a good one. Salesforce is too expensive. Insightly is too basic and does not do any type of rules management.
We are loving it. It is a great startup. You can use it in different ways depending on how you stack it. Transactional emails and marketing emails are very effective. What is really impressive is their ability to bypass spam, which would block most traditional marketing emails.
We use Google Docs but it is kind of the wild, wild west. It is not very intuitive or coordinated. For example, if one employee leaves the company, we have to remove that person's access from all the documents.