Experience with Irmscher LPG plant

Which users already have experience with the LPG analge by Irmscher. Man always tells me (selnst dier kinder opel dealer you should leave your fingers away from LPG in together with Opel engines. However, this should be remedied with the Irmscher analge allegedly – is more expensive than the otherwise offered analgen but if it as alternative would help that would be good. Also with the Opel dealers in recent times you can see now more often that your Astras and Vectras with the Irmscher Offer analge for sale. As a loyal and longtime Opel driver and frequent driver it would of course be interesting to drive with LPG system. So please all come back with your experience. Thanks in advance