It depends on the situation.
If you have a neo-FDR situation in the 20's under a James M. Cox (whether with social security and a New Deal or just regulation), I'd say you'd have a better standard of living and a more robust, sizable, and wealthy middle class.
If Laissez faire, which I think you'd need the Alien Space Bats to make not lead to the Depression, increased economic inequality, and a weaker middle class, but those with money are very well off.
Technologically, also situation. For example, is there a WW2? While I think its very much overstated that WW2 hyper leaped technology (I'm going to say that most stuff its generally credited for fostering was already out there or going to be produced anyway; same with any technological leaps credited to a Nazi run Germany), some stuff like the atomic bomb are only going to come about when they did with a world war.
But without focus on a war or rising tensions before it, or the stagnation of a Depression, technologies could indeed leap forward better than it did OTL, I would say-at least in certain sectors.