i like mine, but i did have to wire in an internal antenna to get reception back up. now it's not bad, but still not quite up to par. also, i only used some parts of that mounting kit mentioned above. for example, i was having problems getting that pvc pipe from the kit to sit right, so i didn't use it at all.
anyway, here's a link on the install:
http://www.bseries.net/html/garage/s2kantenna.php