I've been working with them for several years now as their lead developer/project manager at M2 Solutions Group they have demonstrated great skill set when it comes to project management; from initial concept through implementation into production environments across multiple platforms such has mobile devices (iOS & Android), desktop apps, cloud solutions etc..
The team is very responsive to any issues we encounter during our projects so quick responses time-wise really helps us out! Nothing that stands out right off hand but everything seems pretty solid overall - this includes documentation process which can be quite tedious sometimes if you're not used too or haven't developed your own work flow processes however there's nothing major here either way just minor nitpicks along those lines.