Simplicity is almost always best, but the hardest part is pushing back on management and product that often only care whether feature requests are possible and aren't as concerned with what goes on under the hood.
We have a very slow eshop, worst than any competitor, yet the priority is always new features that will make the life of users even worse.
It's a bit like your car. It takes you from place to place and could drive much faster than speed-limits or traffic-jams allow. But getting from place to place is not all you want. You want to pay extra for the coolest looking fastest wheels you can afford.
When you work with an app or app-development tool that looks cool your self-image improves. You are a cool dude because you work with a cool-looking application. Seriously, it does have an effect on me.