Pros
The PTO is above industry standard. If you are early in your career, 1-2 years at PTC could be good experience for understanding how organizations like this work. It will give you perspective on what you want from an employer. I would not recommend working at PTC for anyone with an established career.
Cons
Reading through the reviews here I'd say those that rank PTC 1-2 stars are in line with my experience. PTC is a frustrating place to work. You'll be annoyed by the flip-flopping on vision, the constant strategy changes and the tone deaf management from the top. I've read a number of reviews that reference salary freezes and no raises. I did get raises almost every year I worked there. Most people do not. In my opinion, the admin and development staff fair the worst. Are there layoffs every 6 months? Yes there are, you can count on them like clockwork. PTC lays off 5-10% every 6 months (spring and fall) but the frequency seems to be increasing. Talk to anyone that has worked in a company with this strategy and you will learn this dampens morale beyond repair. This is true at PTC. People want to leave but they also want to get a package. Working with people who are only hanging on to get a package is very depressing. There are some smart, fun and truly awesome people that work at PTC. It's not that these people aren't good at their jobs, they are GREAT at their jobs. It just doesn't matter if you are good or bad or care or work hard or slack off at PTC. It wears people down. PTC in the 90s had a sales force that renowned for aggressive, high pressure tactics. This was typical of the times and made PTC successful. Most of the sales now are repackaging enterprise license agreements to recognize new revenue. It's easy to guess who the top rep will be - it's the person with the biggest portfolio of renewals coming up. The compensation model for sales and presales is weighed very heavily on the sales rep. Presales consultants did not seem to be valued or rewarded for their work. I guess when the biggest deals are truing up enterprise agreements, it looks like the sale rep is the biggest contributor. Why don't you want PTC on your resume? The people who think PTC is an asset on your resume are likely the people you don't want to work for. The people who know about the culture of PTC will likely not view it the same. In a nutshell, don't work here. If your company is acquired by PTC, give yourself an 18 month limit and get out.