I've been super happy with the support Hostwinds offers. The only issue that I have had is that I had a few Wordpress sites on the reseller hosting and they were using too many resources, so Peter and I had a discussion and I got bumped up to a VPS.
I moved a few of my personal sites (including a resource-hog autoblog), so I've now got 15 or so client Wordpress sites on there. Problem is, I'm trying to sell and host websites, and my RAM usage fluctuates between 35-85% on the VPS so I'm going to have trouble scaling up when I start doing this full-time.
To sum it up, I'm a little frustrated at my inability to host a whole bunch of Wordpress sites, but I guess that's not really Hostwind's fault. The personal support has been out-freaking-standing: A++ on that.