TurboGears

What do you like best?

It's really flexible: you can build anything from a simple API to a full fledged website.

It's modular: applications are composed by middlewares, and it's really simple to put them together the way you want.

It's extensible: there are lots of ready-to-use modules supported by the community to plug a series of componets/functionalities

What do you dislike?

Some of the technologies/frameworks used are outdated.

Some of the features are a little "too magic", taking maybe too much inspirations from Django

Recommendations to others considering the product:

Forget everything you know about Django. Using TurboGears gives you the same ease-of-use, but with the possibility of going much deeper into the inner workings of the framework if you need that.

What problems are you solving with the product? What benefits have you realized?

Had to build a platform with REST APIs consumed by mobile phones and embedded devices, and a dashboard to control them.

Turbogears helped me get up and running in a couple months, while supporting the scaling of the platform through the transparent addition of caching and background workers using Celery.