How good are macs? This opens a debate, In my opinion, Apple hardware is great. It is very sturdy and light weight. As far as software goes it's up to you and the type of user you are. I've been using a macbook pro for a few months now and my only regrets are software oriented. I find some of the software very limiting. They're aren't as many developers for macs as there are for PC's.
If your posting this out of frustration because your laptop is old and probably filled with malware, try running some utilities like ccleaner and malwarebytes to bring your laptop back to life.