Need comparison of 360 degree Panoramic lens

[4world]

There are at least three companies making parabolic mirrors to capture 360 degree panoramic pictures in one-shot for making virtual tours:

1. 0-360 (http://www.0-360.com)

2. EGG Photo 360 (http://www.eggsolution.com)

3. 360 One VR (http://www.kaidan.com)



Can anyone compare these products please? There are lots of EGG lens being sold on eBay so may be that's an indication that it is not doing too well? Also, #1 & #3 claim they have very few plastic parts.

I want to buy one that is easy to use (for a novice real estate agent) and a bit hardy too.

Please help!

Thank much