Karl,
The experienced turners on this forum have a really good idea of what is on the market, and many have seen this lathe up close and personal. What they are trying to do is to help you to understand that when you compare lathes, and their track records, then you can really get a good sense of what the experience has been with different models.
The shop fox w1758 is not near as heavy a machine as you most likely would want, and it has what is some call "an articulating tool rest" which is another way of using an extension arm to make the tool rest not near as solid as the ones you see on a Jet, Powermatic, etc. This extension arm has been known to malfunction, vibrate and in a few cases break on some machines. Some owners have posted about this in the past on forums.
When a lot of turners have already gone through what you are doing [trying to find the best lathe they can for the money they can spend] then they have discovered what you likely will also in your inquiries and gaining from other's experiences.
I looked seriously at the shop fox, and then after noticing the features and heavy machining on other lathes, then ruled out the shop fox. A lot of this will depend on what you believe you will be turning. If you are going to do smaller projects only, [pens, goblets, spindles, candlesticks,etc] then you don't need the heavy cast iron of a machine weighing 500 -800 lbs.
Budget concerns always enter the equation also. If this lathe is in your budget, but a Jet costs too much, then you have to factor that in, and you might be fine with the shop fox. I don't think that the shop fox is a "bad" lathe, but it is lighter weight, has limits on the slow speed [600 rpm is pretty fast for a slow setting especially for sanding, and turning out of balance bowl blanks, etc.] You will be limited to some degree by this issue, but for you it may not be anymore than a minor annoyance.
If price is a big concern, and you believe that you only want to do small to medium sized turnings, then the new Delta Midi that many have gotten and have posted about seems to be well thought of, and would be in the same price range as the shop fox, and has variable speed. Hope this helps.