Very good 2D drawing software, a must have to communicate with other professionals
Spend a lot of time on forums, this is where you're gonna find the answers to your questions. The help section of the software is hard to navigate with and if you have a specific question, you might have a hard time finding the answer with the support. People discuss a lot about it as it's one of the most used softwares in the world in architecture, construction or urban planning.
Pros
Lot of tools, lot of options, pretty easy to use. Possibility to draw very detailed plans. One of the best 2D softwares for architecture and construction tasks
Cons
It's very hard to find any answer on any very specific problem you might encounter using this software. But there are a lot of forums on the internet so you're most likely to have at least another person that was able to solve your problem, but it's usually not the best way to solve it. It would need more administrator providing solutions.
It might need some time to understand that what you see isn't what you print (talking about colors, line thickness,...).