Installed to 3.5.1 absolutely no problem. Banners are easy to create and organise. The output HTML is simply and well formed.
As the banner can be saved from html, using Swfobject's Dynamic Publishing facility allows even flash banners to be only loaded when appropriate. This avoids sending large banner images to mobile phones, etc then having to hide them. Instead you can detect the context (desktop / tablet / mobile / etc), then decide whether to load the image of swf.
Very useful, good balance between ease of use and options.