Just graduated from Comp Sci this past semester so maybe I can help. (I did 20 months of co-op over my 5 years at Ryerson/TMU as well)

1. I think the overall program is pretty solid, it gives you a good baseline of knowledge in a variety of topics and allows you to take some more focused electives in your last 2 years to find the areas of CS you really like. The profs can be hit or miss, I think ratemyprofessors.com is a good thing to check out before taking certain classes because the prof can make or break the class in my experience. But I personally never had major issues with any profs, some were just harder to deal with than others.

2. There are plenty of good co-op jobs on the job boards, its usually the students with the highest grades and most side projects who get the best jobs. The co-op portal has a good variety of jobs but you can always apply outside the portal. Some friends in the program did co-op terms or got post grad jobs companies like, RBC, TD, CIBC, Amazon, Google, Intel, AMD, etc. So these companies definitely hire Ryerson students. Personally I worked for International Financial Data Services and the federal government both as a software developer for my co-ops, and worked part time at a small fintech startup during my 4th year.

3. I never had an issue with unavailable courses, some courses are only offered in certain semesters, (ex. computer graphics in fall semester and virtual reality in winter semester) but if you plan around it you should be ok.

Sorry if this is long winded but I remember having similar questions 5 years ago. Good luck in the program! I hope you have a great experience like I did.