Don't know whether this helps but this is the (edited) reply I got from Pete Effamy when I was looking for a Tenor and considering the Jupiter...
"First of all, it is extremely unlikely that after playing for a year you will find yourself buying a 'horn for life'. Your development in embouchure and air control will still evolve enormously and this affects the feel of the horn and of course the sound that comes out of it.
Your tastes and expectations will evolve too and the better you become, the more input you have in shaping the sound that comes out, rather than being limited by your technique. After a year of playing you are unlikely to sound much different whatever horn you play on. The main difference comes from the mouthpiece anyhow...
Selmer, Yamaha, Yanagisawa are the big recognised makes. They have their own take on how to build a saxophone and how it will sound depending on their design choices.
Keilwerth, Trevor James, Mauriat, Rampone are also trying to join this elite group.
Bauhaus Walstein, Jupiter, Elkhart etc etc etc are the manufacturers that are attempting to offer a very viable alternative to the big names but for a fraction of the cost. The Jericho J6 has joined this group.
Saxes and mouthpieces can range from a mellow tone to a bright tone, so you need to decide which type of sound you want to make and choose an overall setup that will make the production of this tone the easiest it can be (for you! - we're all different)...
The J6 is a decent horn. They tend to be fairly bright but this can be a good thing as brightness is easier to tame than it is to create if it isn't there inherently. It would be a great first buy, that could last you a long time. We don't know how they will fare after 10/20 years yet as they are brand new. For a fraction of the cost of a Yamaha though, it's probably a no-brainer. I've played the J6 in gigs and it has done very well. I have two Selmer Mk 6's, collectively worth about £10k. I don't fancy these horns going into an aircraft hold or being on stage after the gig with the crew dismantling the set around them...
At one year, I still think that you have many roads to explore re mouthpiece/sax/reed/ligature and your ability has yet to match the equipment rather than vice versa. The quality of the J6 and the price should be the ideal sort of horn to carry you to a point in your playing where you can make a decision about where you want to go next. This could be 5 years or more, depending on how much you practice!"