we were just there for a quick four night stay.
We had a 2 bdr unit in Lakes, which was immaculate. Checkin was a breeze (we were staying by the night on this trip; if doing a full week be sure to use the diamond lane checkin on the website). The first unit they gave us wasn't ready. One of our party members wasn't feeling well, and I went back in and begged for any unit in the resort which was ready at 11 am. They found me one. We were very happy there. In fact, we are not at the Hard Rock at Universal, and it is much dirtier and less well-maintained than the Vistana.
The ony downside that we experienced at Vistana was stopping for the welcome gift (which now only has local coupons you can get from any flier anyplace, no Vistana cooupons.) Gwen, our "expert", was downright witchy when I firmly said no to the "guest breakfast." I then got a call from another guy who was insulting when I reitered no breakfast this time. Those were the only 2 contacts, and other than that, we were delighted. A very good stay.