Higher Logic is a great plug and play platform
Higher Logic makes it amazingly easy to manage a community platform. The integration with our AMS (netFORUM Enterprise) was very simple and quick, their support is great at answering questions and helping resolve any issues we may run into, and the tool has a lot of great features that makes it easy for our community manager to do nearly everything on their own without needing to constantly bring in IT support. Higher Logic also does a great job of continuously improving their product, so I have high hopes for how this platform will continue to get even better.
There are still a handful of things Higher Logic could do better, primarily their backend content management system is pretty clunky for what otherwise is such a modern and easy to use system. Once you figure it out you can still do pretty much whatever you need to, but it's not great. Additionally because it is so simple to setup and manage, by definition there are also areas that are not fully customizable. If that's not a concern for your organization than I would recommend Higher Logic without reservation (assuming the price point fits your budget). However, if you are looking for a more customized experience, or one that you can tie direclty into your existing website (and if you have the budget or developer resources to build out something like this), there may be better options available.
Bottom line, if you want a super customized community platform that lives directly on your main website and allows you ultimate flexibility, Higher Logic may not be for you. However if you're looking for an easy plug and play community platform that also has a good integration, and an extensive feature set, you'll likely be very happy with Higher Logic.