I have been renting a home through the Cunningham Group for over 2 years now, and they've been exceptionally helpful and quick to communicate back to me on any home repairs (both emergency and minor) and requests that I've made. I really like their web portal, as it's a good way to request repairs and follow up with them, but they are also available by phone if you need to get a hold of someone. Keep in mind, most property managers are busy enough with the daily work to get back to people immediately, so my understanding has always been that you do have to put in time yourself if you want to see something resolved.
I've noticed over the years that Yelp reviewers like to complain about a company or business because the follow up is not immediate (maybe it takes 1-2 days) or the Yelp reviewer had to call back several times (oh, the horror). That is isn't a valid reason to complain and it certainly is not productive, because it takes good communication on both sides to get things done or resolve an issue. If I give bad feedback, it's going to be because of clearly poor service or products despite all attempts to prevent or avoid that outcome. Having to get in touch with someone several times is just a facet of life, especially in our technology-laden and fast-paced world.
I'm really happy with the Cunningham Group, and if I decide to buy a home in the area in the near or distant future, I will definitely consider them first because they've been so easy to work with and so responsive to my requests and needs. This team works hard to make sure they communicate and follow up, so I trust them completely.