What does the software or service do well? Good reliable service. Haven't seen any downtime in the past few years. I used it as a learning device for learning how websites worked and functioned, different options available, design choices. Stayed away from the auto optional website builder in order to learn on my own.
What does the software or service not do well? Setup buttons were somewhat confusing and/or just look outdated that it is hard to understand the options available (this is from awhile ago; they may have updated their GUIs by now). Some knowledge beforehand helps, but still can get a bit confusing. Since I used it primarily to learn about these things, I'm not rather sure this is a downside since I can't compare it to anything. I also had some inconsistent timings with emails. I think a couple might have gotten lost somewhere, as some emails I just never received or took forever (without attachments).
What do you wish you had known about the software or service before using? Everything worked out well for learning purposes. Others should know that I bought the package for multiple years, so my price was upfront consistent. I think they charge differently after your first purchase, so that might be a consideration...
Have you used a competitor to the software or service? If so, how does it compare? Never used another software or service.