People who have taken either MATH1005 or MATH1905, what was the content like? I'm trying to decide whether I want to do the advanced version or not. For those who did MATH1905, how was the difficulty of the content?

I've decided to major in mathematics and I meet the requirements for taking the advanced version of the first year maths units; however, I have a pretty heavy workload lined up for semester 2 and I'm considering just doing the regular version instead. I will also be doing MATH1904. Of course, it may be best for me to see how I go in semester 2 with the advanced versions and then make a decision to switch to the regular, but I wanted some external insights.