There's many a thing wrong with this, besides just the design of the horn itself (which again seems to defy the notion that a sax player actually had input into it).
1) The shop/model name is using a moniker which can be confused with RS Berkeley.....and yeah - although one can claim 'hey it's because of the geographic location of the shop !'...the fact is the horn is made in asia, and there's no question in my mind that the moniker intends to piggyback on the name of RS, thus intimate an association with the better known company...while giving the producers/sellers an 'out' should that notion be raised.
2) This is a (bad) throwback to the 'home' models of the 1920's...in an era where the notion of a pared-keywork sax has long, long ago vanished as any sort of positive attribute.
3) Why not just buy a cheapie soprano or sopranino instead ? Is one seriously gonna argue that the difference in length of a few inches is gonna create any sort of 'hardship' in transport or usability ?
4) Again, IF the creator had done some R&D they might have discovered that the world of sax players is quite conservative when it comes to proposed changes/inventions in keywork of the sax...look at noble failures such as LeBlanc System, Italian 'Ministeriale' horns, or even the resistance Jim Schmidt has met.
So, if you are gonna try to climb that hill, it might be advisable to not attempt it with something which has additional strange qualities to it....
Just my 2 cents as a purveyor myself.