Yes ... it is great - but there are problems
Mainly Construct is not really finished.
The overall user interface is weird.
The lack of real scripting is a problem for me. I often use Construct for prototyping but in the end I end up making it work in flash/python/gm/c++
I know there is python support but I have never been able to do anything interesting with the python plugins.
But in the other end of the scale. The behaviours and the plugins there are there are fantastic.
Sprite, Mouse & Keyboard, Physics, Platform, Drag'n drop are just stuff that takes a long time to get right in other environments.
The event sheets is also a great plus. Groups that you can turn on and off and Sheets that can be arranged into multiple sheets. These are a great way to arrange game logic.