Zeiss Z-point question

[casio02478]

Thanking about getting a Zeiss Z-point for my Fn 12 gauge police shotgun, will be using it mainly for home protection at night. It is advertised that it will withstand 50 caliber recoil and have a 5 year warranty. Looks like a good sight but did a search and can't find any user feedback. Is either this or a much more expensive trijicon tri-power. Any help is appreciated esp. from owner or past owners. Thanks