I have 3 DIAKIN AC’s and two of the AC’s had pipe leakages within 2-3 years. I had never faced such issues with Mitsubishi Heavy Duty AC’s and I’m still using 2 of them for the past 8 years. Also the cooling of 1.5 ton is not as great as my Mitsubishi heavy duty. Not happy with the quality. Won’t buy again!!!!