I recently got the 18" Jet -
love it!
The blade mounting system is great, IMHO. You take the little lower blade holder (you get three with the saw and can get more on Amazon for about $20 / 3). I hold it with the knob to the right, slide in my blade with teeth up and knowing it's the bottom holder. I have my thumb against the bottom of the holder so I just slide the blade in until it hits my thumb. Snug the knob, then put the flats of the holder into the hole on the side of the saw and tighten it. If you're having grip problems you can make a little wrench by cutting a small slot into a bit of wood to give you something larger to hold on to.
Pop the blade holder into the lower holder and bring the saw arm down. Center the top of the blade in the clamps and flip the big lever up. Your blade is now at
exactly the same tension you set earlier.
I
have occasionally had the arm (apparently) move a bit when the saw is not in use - you bring it down and the blade seems to be about 1/4" too short. Just adjust the tension knob to bring the arm down, clamp it, then set your tension and you'll be good for a long time. This only seems to happen when I haven't used my saw for a few days.
You can easily adjust how aggressively the Jet saws cut - the manual shows you how to do it and it looks pretty easy.
I had one very minor problem - the lower blade guard clattered and fell off. I called up Jet and they sent me a new one which I easily installed. It did the same thing so now I know that if I want it there I
can do it. First I have to have one of the broken ones re-welded. The key appears to be that you don't want it down by the arm (which mine were) but up by the bottom of the table. As far as I can tell (and the person at Jet agreed) it's just an extra safety bit so if the blade holder manages to come out while you're sawing it will keep it near where it should be. I use a deadman switch foot pedal so I'm not worried about it. I have had a blade or two break with no catastrophe.
While the Jet is a bottom feed the arm (on mine) raises up 10" and stays up no problem (if it droops there's a simple adjustment). If you're having trouble hitting the hole you can pop out the lower holder and feed it up near the front edge of the table and then
easily get the lower holder back in place.
One small thing that will probably affect your finely detailed work: I have found that the clamp (at least the way my saw it set) actually clamps so hard that it eventually mashes the end of the blade to a slightly wider shape. My saw may be set too tight one the clamp. You can either use a small file to clean up the end or just go to a fresh, unsquished blade when it starts to get too wide.
Looking forward to seeing some the great things you'll do with your new saw!