"Does anyone know if Cloupor has improved their quality?" LJ, you understand what a loaded question that is, right? I mean, no one can answer that for you.
All we can offer is our personal, anecdotal experience. Even if we speak in superlatives and praise our Cloupor Minis to the sky, that will be of no help to you should you happen to buy a Cloupor Mini and get a lemon. Basically, you're telling us that you feel tempted but suspicious, having already been disappointed.
My take on the general consumer sentiment concerning Cloupor, gleaned from reading various forums, discussions, and reviews, is that the company suffered a number of missteps and has a less-than-stellar track record. The Mini's early production run problems---where a number of units malfunctioned electrically---didn't help matters any. I can also attest that the overall experience of posters in this thread has been positive where the Mini 30W is concerned.
I took a chance on a pre-order from gearbest because of the Mini's diminutive size, magnetic battery door, and a low price ($29.99 shipped). Over the month that I've used mine, it's performed flawlessly. While I'm not enthralled with the 0.8 second firing delay when the display screen is "awakening from sleep," I can live with that, and I love the fact that swapping out the 18650 takes literally 15 seconds from start to finish. Build quality seems solid, and wattage regulation is accurate. I like my Mini enough that I've ordered another from gearbest (also $29.99 shipped using coupon code "clouporminipc").
That's not intended as advice or a recommendation, however. I wouldn't feel right about trying to sway you one way or the other. The decision to buy or not to buy is yours.
