Pros
PTC is growing. At one time the company made it's name on its flagship CAD products. Once the competition showed up though, PTC had no plan and fell on its face, but it learned a valuable lesson and began diversifying. They have been ever since. They are good at acquiring companies with upside, and their most recent acquisitions are putting them in a good spot to take a serious place in IoT.
Cons
Don't expect PTC's acquisitions to mean new opportunities though. PTC's slogan should be "the land of silos." It's where careers go to asphyxiate. Training is non-existent, and making it clear that training is part of the critical path for a project is only met with hostility and negative impacts for the "troublemaker." (speaking from experience) So, all of these new acquisitions have become PTC's go-to growth strategy at the expense of learning how to leverage internal talent. If you do go to work there, plan your exit strategy no later than 2 years, or you'll find yourself becoming obsolete to the outside world.