I am a marketer and developer so I love Wordpress. There is quite a learning curve when first getting started though, so be prepared for some frustration in the beginning. But if you have a lot of patience and time to commit to learning how to build your own site, there are some great options for you with Wordpress.
There are great plugins that you can use that will get you the IDX. If you're less of a coder, I wouldn't suggest going with the Wordpress.com option. It can get a bit pricey when you start adding features like videos and photo galleries, which are incredibly important for realtors to get the attention of their intended audience.
We do offer IDX websites with my marketing packages and that is often the easiest option for realtors, as I think it's important for them to focus on income generation than technical stuff, so www.epowerofe.com will help you get your site up. Overall, Wordpress is great and I definitely recommend it.