Freemium WordPress, I’ve so named it because of the pay features, is nearly as good as it gets. We’re talking about slightly limited cosmic power at this point. The only way you get more power is by coding the page by yourself. WordPress simply makes it easier to get widgets and content by having material that’s been previously coded.
There isn’t much you can’t do when it comes to paid WordPress. There’s a huge community devoted to making more and more content for users to use, but most of it locked up behind a price tag. If that’s not an issue, then go for it!
The big negative is, of course, the money. This version of WordPress don’t come cheap, and even a couple of relatively basic elements can start to rack up the charges. Some are one-time only purchases, like templates, but there are other fees, such as domain hosting, they slap a recurring charge on. But while themes are one time only, do you want your pages to remain static for all time, or will you want to change the background and colors at some point? If the latter, you will likely have to pay for another template.
If you’ve got the money, go for this platform, but at this level I’d also look at what a professional developer might charge to set up a site. It might be cheaper depending on what you want. This definitely isn’t a cheap option, though. If you’re on a budget, think carefully. Make sure you are getting full value for what you are paying for.