I've used ConnectWise as a sales rep at two companies now.
My current company Southern Data Solutions rolled out ConnectWise in June of 2013. At the time we were just scratching the surface and so it seemed overwhelming to know where to start. However, the more we've dug in, trained, and interfaced with the CW support staff, the more we've uncovered ways to leverage our investment.
We provide professional and managed services to our customers so as a salesman and account manager it's helpful to have a tool that I can use during the full sales cycle on to managing existing and on-boarded accounts and increase profitability with our existing base. I have found the marketing campaigns and tracks particularly helpful. The integration to Quosal is seamless and impressive. Working and closing opportunities and maintaining client relations is easy and great for weekly reporting. I've also found the support team helpful when we needed assistance.
This isn't to say CW hasn't had it's hangups from time to time with rollouts of new editions but we have found a responsive team to help at CW to help with the growing pains.
I recommend it for any company that provides professional services since the service and project boards provide good interaction between operations and sales.
Kinda huge, kinda slow, but lots of value for the money.
CW has really helped us as far as sales tracking and integrating things a little more cleanly. We already had a product that did what CW does for support, asset management, and contact management, but we just shifted the $$$'s we were paying a developer over to ConnecWise and got so much more in return. It's funny, we went to the CW conference in 2006 and Arnie polled the audience for how many people use what modules. After ticketing and contacts, man, next to no one was using any of the other things (and I still don't use the project management, it is just to much trouble). But, the CRM and Sales tools are where the rubber meets the road folks. There may be better PSA tools that handle ticketing, or assets, or crm, but none do all the tricks as well as ConnectWise. As a bonus, CW has a prety active community that had broad knowledge of the product and how their businesses use it.