Just speaking to the first one as I have some experience regarding that, the reason people feel Hungary has been a better place to live under communism might be because of any of the following:

• First and foremost, Hungary was living beyond its means after 1970. The ruling communist elite (this term should be an oxymoron, but somehow it seems it isn't) fearing an upheaval because of the global economic downturn, started to take out loans to keep the country placated. Hungary was never able to repay this, and indeed its liabilities only grew under the communist regime.
• The current set of idiots changing one another actually have to have the country repay all that money. So yeah, Hungarians feel that living in a mansion bought on a loan so to speak was much better than having to pay for it and getting evicted.
• Speaking of the current idiotic leadership, Hungary never really ousted the communist regime, so they transitioned into the new elite. Most current Hungarian politicians were well positioned in the previous system, or were outright party members.
• Regarding the current leadership and why people feel that the EU is bad for them, Hungary spends more money on anti-EU propaganda than its whole education system and has done so for more than the past decade.

In no other Central or Eastern European country surveyed did so many believe that economic life is worse now than during the communist era.

No other Central or Eastern European country is so blatantly serving the interests of Russia and China over its own and (that of its aliies') either. Maybe that's not a coincidence.

Just 46% of Hungarians approve of their country’s switch from a state-controlled economy to a market economy

Calling Hungary's economy a "market economy" would imply that the majority of Hungary's capital assets is not captured by government aligned interests.

I don't personally have experience with the rest, but what you've written implies Hungary would be better under communism. The truth is, Hungary has a huge voter bloc that wants to go back to communism, and they elect fascists that promise to do it. The result is obvious.

Oh, the transition to communism wasn't simple either, Hungary set the still-unbroken world record for hyperinflation in the fist years of communism, when they managed to inflate their whole money supply to a collective value of 0.3 US cent. So those guys were obviously saying "we were better under the monarchists!". And they were in clear majority, before communist elites in Hungary called in Soviet troops to reestablish the repression.