It has been great experience. We have numerous implementation done and has been successful.
I like how their community is growing daily and the UiPath forum, Academy, Q&A section are great and very helpful and I can find what I'm looking for there.
I'm sure they will keep the good work and the best is coming in the future especially with the UI integration and all the helpful features.
However some things still bother me a lot, an example is the difficulty of stopping a run easily in Studio, which ends up causing some inconvenience in the development phase.
When debugging, some bugs in studio often rear their ugly heads leading to unexpected results. Furthermore, some errors are not as easily identifiable from just their code/message.
For more complex frameworks it's hard to figure out, what does what on the diagram, as you cannot see the whole at once. I's a bit hard to debug issues.