I prefered the old website, it was easier to navigate.
The horizontal scroll is a bit unusual, but I can live with it; what I don't like is that I'm somehow forced to navigate the site in a single tab (and I like opening lots of tabs in the browser

).
For example, I go to Application section and see the Minimoog Model D App, the Model 15 App, Animoog, etc: on each of these apps there's a "Learn More" link. My first instinct is to open those links on different tabs of the browser (so I can read all of them without having to navigate back... this is also a way to remember me to see those pages). If I hover those links with the mouse pointer, the browser shows the link to the main section (for example "synthesizers -> applications" - synthesizers?type=56) instead of the product (for example
https://www.moogmusic.com/products/minimoog-model-d-app for the Model D App), so cmd/ctrl + click on that link opens a new tab on the main section instead on the product. Left clicking on the link works correctly, but forces to use just one window.
I guess there are some scripts controlling this behaviour (maybe it's even a design choice to force the navigation on a single window/tab on the new website)...
My workaround is to still cmd+click on those links in order to open a certain number of tabs and then to click the link I want to see in each of those tabs..
I use Firefox on High Sierra, if this comes out as a platform/browser specific issue.
MacMini 5.1 (mid 2011) i5 8GB OSX 10.12.3; Minitaur, 2x Mother 32, MF-101/102/103/104M/105M/107/108M, MF-Drive; Roland Studio Capture, Motu microLite, 2x microExpress, iConnectMIDI4+, Maschine Mikro, Cubase 9.0.10.