I bought xeta gls in 2007 and till date I dont have any problem.The only prb with this car is its poor GC.
I got installed LPG in the very beginning(MIZO) and I dont find any prb regarding pick up, power loss or prb with AC.I think peple who own Xeta should go for Mizo LPG kit which really works well with efficiancy.What else comfort section+ leg room really wonderful with elegant interiors which makes it a complete car.