What does the software or service do well? While I do have the pro version, you can pretty much do anything without the pro version. I like the pro version because it can save my colors, fonts, and unlocks certain graphics. One of my favorite features of the pro version Canva is the ability to magically resize my graphics depending on their uses.
What does the software or service not do well? Sometimes when I'm creating PDFs and other graphics and go to save it, it doesn't keep the formatting. This can be frustrating.
What do you wish you had known about the software or service before using? I wish I would have known how to create graphics that were more attractive than their templates. I've since mastered it, but it would've been nice to have a tutorial beforehand.
Have you used a competitor to the software or service? If so, how does it compare? I've used them all and still use photoshop a lot. However, Canva is perfect if I need to pump something out quickly. Once in a while I'll download my Canva design into Photoshop and touch things up (such as filling in text that has a lot of bubbly letters).