What do you like best?
Balsamiq is a lightweight solution for wireframing products, websites, and apps. It requires very little training to begin using. If you are familiar with other design, prototyping, or wireframing software you'll pick it up quickly. It has some built in features like commonly used libraries (buttons, copy elements, forms, ios screens, icons, even has fontawesome integrated) to help speed up your workflow and kick out some low fidelity wireframes fast. Balsamiq has options for a sketch mode that styles your graphics to look more like drawings for when you need really low fidelity, or wireframe mode which is a little more polished with solid shapes and edges and fonts. Default is a monotone greyscale look to your designs but you can add colors and elements to make them pop moer. You can also create click through prototypes of your various screens and export to PDF for sharing. Plus you can purchase a web/cloud version or install a standalone version on your computer.
What do you dislike?
There aren't a lot of export options or ways to integrate to other tools in the design process such as Sketch, Invision, Adobe XD, etc. to take your low fidelity wireframes right from Balsamiq into the next phase of your workflow. Also, the web/cloud version seems overpriced. Charging per project instead of user. Considering how minimal the feature set, I would expect it to be less. If you are on smaller teams, opt for the standalone version instead.
Recommendations to others considering the product
They have a lot of info on their website about the features and how to use it plus helpful videos. It doesn't take long so do a little research. Also look up other similar wireframing tools and compare features for what you need. Lastly, they offer a free trial and you can easily learn all of the features in that amount of time to make your final decision.
What business problems are you solving with the product? What benefits have you realized?
Our team needs to be nimble and iterate on ideas, prototypes, and design flows quickly. Balsamiq is an affordable solution to do this.
Fast, cheap, and almost anyone can use this with minimal software education.