CiviCRM

Pros

Excellent event registration and membership management at a price that can't be equaled. Best of all, it works in and with our client's websites.

Cons

It's not an intuitive tool. You need to learn the logic of CiviCRM to get things done. It's not hard, but I wouldn't give it to a client without a few explanations and probably training.

Pros

The flexibility of this platform is truly amazing. You can customise it to your exact needs and the range of features is unbeaten. Most powerful CRM I have come across.

Cons

The user interface is what lets this platform down. It is not responsive and although a developer has made a mobile app, it is too late to the game and does not properly give you the power of CiviCRM in your mobile. Considering most people now will want to access these platforms from phones, this is what makes CiviCRM unfortunately not really future proof.

Pros

CiviCRM is extremely versatile and customizable. We use it to produce letters to donors and large mailing lists for various functions. If you have a fair amount of technical web knowledge, you can integrate your database with other online software like MailChimp. It is also FREE!

Cons

CiviCRM is pretty clunky and not pleasing to the eye. While you can segment your database in almost any way with the search features, it's often nearly impossible to know which version of the search interface you should use: Advanced Search? Search Builder? Full-text Search???????

Pros

I work for a very small and relatively new non-profit organization and CiviCRM has been the perfect combination of intuitive/ user-friendly, as well as adaptive to our unique needs as we continue to define our direction, expand our scope, and grow to reach a larger audience. Civi has allowed us to track and maintain well-rounded profiles of our constituents, donors, participants, and volunteers -- many of whom fit into multiple of these categories. I have a lot left to learn about Civi and when I get stumped, I can almost always find the answer in the forums online or through our vendor.

Cons

I've had the most difficulty with CiviCRM integrating into our Mailchimp account and newsletter. Overall, it's worked quite well but there have been several glitches and several times where the solution or steps to take to fix a problem were not at all obvious (to me, at least!).

Pros

Cost -- our volunteer run organization could afford it (we pay for hosting which includes administrator and user coaching)
Highly functional and generally very easy to use
Very flexible with extensions that are much more advanced than found in cost-comparable products -- membership, events, etc.
Very good API
Ability to fully get all data out of it

Cons

Import of large quantities of data using supplied import procedures is painful at best. That said, a person who understands the database can bypass the worst of it -- however, we could do this, and the closest competing product priced itself out of our reach by an excessive import fee.
While existing reports are easy to use, creating truly new ones is nearly impossible (need to create a new extension)
Sadly lacking documentation on creating extensions