It's going great so far, almost run it 5,000 kms and plan to run it another couples of thousand kms. Total claims it can run for 10,000 kms, but I would not test it to this far.
Consumption has been not much different than Taglon 5w-50. It has been giving me 14 kms/lit in urban drive. You must have seen my worksheets.
Nowadays I am driving it just 8 kms per day after every second day to fetch fresh milk so the avg it is giving now 11-12 despite no traffic. So in the short runs the avg drops.
When my daily run was 60 kms per day, even when half of it was in extremely congested and broken roads it gave 14.
If you are satisfied with 5w-30 keep that because then you will have to buy 200 ml additional which is not a problem if you go to some reputable lube shop, you can get it. But outlet should have to be reliable.
While you can get 5w-30 in a liter pack also.
If you can manage that trying 0w-20 does not harm anything.