I use xencloud and I've had issues with other addons in the past. The install was a breeze, download to your computer, click addons on your forum admin console, then install the zip file. installs effortlessly.
This is a very nice and comprehensive addon and a no-brainer for those who want to show/sell ads on their page. Siropu also responds quickly when asking him questions, and my highest recommendation :) :)
I was concerned about being able to implement similar ad placements when I migrated from vB4 to XF2.1. A couple experts recommended this addon and it is working great. Very flexible and I appreciate the export system and lazy load feature. I haven't even looked at many of the options yet. I only needed the Lite version, but bought the full version on the Easter discount offer in case I needed the extra features in the future.
I used the XF1 version of this addon and didn't think it could get any better than that. I was wrong! This version is WAY better. More placements, easier to put ads in multiple places, more options (eg, affiliate linking). Just fantastic.