Here's my thoughts. I've been looking at Hana clones for over 3 months and only ordered one earlier this week because the VS was going to take a bit longer for me (reserved at a shop). During the 3 months of researching, I found that lots of people had issues with the clones but during this time but they seemed to have addressed most of those issues. Now would be a great time to buy a Hana clone from pretty much anywhere. Just know that they still have some issues that are fairly easy to fix yourself. I got the one you linked but in blue from china because I wanted blue and I also saved a few bucks (10% code: fcvapingcheap (doesn't work on US items)). It's made by KSD and said to be a solid clone.
The reason I ordered one is because I wanted a backup to my VS rDNA 40. I'll be modding it and the Hana boxes are fairly easy to mod. I already have a VariTube 510 connector for it and will be ordering a new fire button. If/when the clone breaks, I'll install a
dna 40 board in it. I originally wanted the mini but there's still conflicting reports on the size so milling out the battery compartment to accept a 18650 might not be an opton. I still might get a mini to try later on if I get bored.