Currently using Mitsubishi Inverter Starmex system 4 since 2009 replacing my 8 year old Daikin. Both brand I considered as excellent.
9x9x9x18 - configurations
My current starmex i think is the First Gen model, so far never break down. Did the usual maintenance over the years.
Moving on to my new BTO, I just purchased and installed the latest Mitsubishi System 4 starmex 5 ticks. Bought from Gain city, overall installation is fine. Some upgrades such as Armaflex, piping 16mm, copper 22. yet to move in to my new hse to test the actual power consumption.
Current config
9x9x9x24
As a heavy user, my AC is on almost 24/7 on daily basis. I hope Power consumption with 5 star ratings will help.
IMHO, its best to get a System 4 rather than a sys 3. Why? SG so hot. Living room sometimes need AC when me & wife hang around in the living room. It will be uncomfortable without AC. Pls I don't plan to install ceiling FAN. These fan won't help much to cool down the living room except blowing hot air.
I believe those that checked the first 20 pages in this thread will know the exact date I install my System 4 Starmex. Didn't expect this thread would grow to 446. hahaha