Hi, viktron! Welcome and great first question. Jubeat is awesome.

As someone who used to drive several hours to Canada mostly just to play Jubeat, I can help answer your questions!

1) The software in that video is not emulated. There is no Jubeat emulator, so you are seeing actual arcade data in the video. People who go this route typically source a PC and then (not legally) download the arcade data and configure the PC to work with their controller. This is similar to the FB9 Jubeat home controller you can find from gamo2.com. That site is long out of stock, so you'd have to source a controller used. An FB9 pops up every few months in bemani used marketplaces, so they aren't freely floating around. There was one on ebay in the last year, I think.

2) Yes; depending on availability. Jubeat cabs are the smallest/lightest bemani cabinet (that I'm aware) so as long as you have space, the budget, and the means of transport, this is very doable. Last year I actually bought a Jubeat cabinet from a local importer in the Seattle area. https://www.hadouken-arcade.com/collections/all-game    I'm not sure if the website is up-to-date, so use the contact form and they should get back to you.
This is my recommendation if you're trying to use an actual controller. There are online networks to also enable profile /eamuse functionality which most importers will tell you about at the time of purchase.
If Hadouken is out of stock, the online marketplaces will see sellers selling their cabinets. You'll have to get the cabinet shipped which will certainly add to the budget, if the seller is not local.

3) I played on an iPad for years, but on the original app. I haven't tried the new app due to #2 above. Obviously a different experience, and this was a good fix for a LONG time for me, because as you know there are no public Jubeats currently in the Western Washington area. I've thought at times getting a used iPad pro from swappa and doing the app, but I then remind myself I bought a cabinet so I didn't have to do that. haha

Bonus: There are several local Jubeat cabinet owners. Making friends with them is another option. For starters, Misu will host public events for cabinets he owns. Check out his discord: discord.gg/NatVsj2eVK

Let me know what other questions you might have!

Thanks for your response! This is super helpful information. I'm staying in Richmond for a couple days next month so I'll definitely play as much jubeat as I can.

Buying a cab sounds really appealing if I can enable e-amuse service. Did you do this for your cabinet? On the other hand, I'd enjoy the experience of building a controller and playing on my own PC, which would also be much cheaper. I see what you're saying about the software though, so I'll just stop talking about that.

In the meantime I'll check with Hadouken to see if they plan on getting another jubeat cab in. I'm definitely into the idea of buying some other games from them too - would like to support locally where I can! Also joined that Discord you linked, thanks!

Hi all! After a month or so of work, I finally finished building a homemade Jubeat controller for myself! Powered by Arduino, so thanks to that and spicetools, this was easy to do, just a lot work. I'm hoping to pick up another monitor to mount it to soon but I'm more than happy playing like this for now, especially since I'm new to the game! 

Awesome accomplishment. Well done.