It's not easy, I had to spend 60 hour weeks sometimes while taking the harder classes. There are easy classes as well, where I spent between 3-5 hours every week. You can take a look at the courses here: https://omscentral.com/courses
Bonus: My Employer pays for it and I work evenings.
Are you willing to share a little about what made the difficult courses difficult? Heavy math component? Hard algorithms? Time consuming programming? I'm considering this program (and UT's), any additional information would be much appreciated.
Congrats on completing your last semester btw; no doubt a significant commitment and accomplishment.
The projects themselves are fairly intense and, if you take 2 courses, their deadlines will likely overlap.