Thanks for your interested in our AE970D soldering station.
1) I go over the eevblog reply in your questions. It's true that the soldering tip is similar to T12 tip, but shorter in length and slimmer in size. This helps our station quicker in temperature rise (about 10 seconds reaching tin melting point), and more comfortable in soldering. T12 tip is rather long, meaning your handle cartridge longer than AE970D handle. With silicone handle cable, our soldering experience should be more friendly.
Our customers are more likely wholesalers, and resellers. We don't actually have online shopes (except a US Amazon store, mainly for brand building and quick sample delivery to our clients) targeting on end users and directly compete with our customers. This limite our cooperate with youtubers or bloggers for marketing. One reason you seldom see their review.
As you have found our Netherlands resellers, AE970D has also been supplied to UK, Germany, etc. I also have positive comments from Thailand or request from India recently. I believe its quality is trustworthy and worth a sample to try.
2) Our soldering handles are with 25VAC output, and can only compatible with our own tips. You might need to go to our resellers or us for a replacement or spare kits. This is shortcoming, but also strength. We design and produce the tips by ourselves, we can control its quality.
Hope my information help ease your concerns.
PS: my mail reply was declined as spam.