A lot of people blog on Wordpress and I had one on there at one time but I can't get back into it now! Not sure if it's me or Wordpress that's at fault.
I'm no expert but have made and run a few WordPress sites. It works very well, has a lot of support, very flexible. Many, many sites you regularly use will be WordPress without you realising.
Wordpress: what is it good for? Absolutely nothing! Say it again.
Sorry. It’s very good really.
I experience pleasure and pains, and pursue goals in service of them, so I cannot reasonably deny the right of other sentient agents to do the same - Steven Pinker
I use it on several sites I maintain, but as a standalone installation, not hosted by wordpress.com. I've found it pretty simple to set up an configure, and with a bit of effort your site can look quite presentable.