How can anyone say whether or not its going as well as putin hoped when don't know how well it's going, and don't know what putin hoped?
Because we can basically guarantee that Putin did not hope for:
-The US and the west in general imposing massive new sanctions to the point that Russia's trading partners risk being reduced to single digits.
-The west being willing to supply Ukraine with some genuine military supplies.
-While some European countries get a renewed interest in their self defense spending and pacts.
-For this thing to drag out for almost a week with Ukraine's capitol having been threatened for days and still not having fallen.
-While Ukraine's president is still in the country and in power causing problems for Putin, with no real Russian propaganda campaign aimed at discrediting him to the world.
In short, while we can't say can't say for certain how badly it's going for him, it's assuredly gong worse than he'd hoped as it's requiring a lot more effort than his last land grab, while causing worse repercussions when he hasn't even secured the place.
Because it's evident in the actions on the ground. The extreme and uncharacteristic restraint in avoiding civilian casualties indicates that Putin wanted to fight this war as cleanly as possible, to minimize the backlash he would receive.
Well that, and I'm fairly certain he wanted to take Ukraine as intact as possible to minimize the amount of rebuilding needed before it could be made profitable. If you roll in to conquer a place by blowing up all its radio stations, cellphone towers, bridges, roads, airports, power grid, power substations, power plants, hospitals, etc.; then you've got to spend the time and money rebuilding all that shit before the place is making money for you again. Go in soft instead of razing cities, and everything can be put back in working order again and you can start making whatever upgrades you want.