Man I could speak volumes on this topic. Short answer. Spend the extra $$ and get the LSZ-1. I promise you won't regret it. I use the zig zag feature much MUCH more than I ever thought I would!!
I started with an old used singer about 15 years ago that I'd gotten at a yard sale
for 50 bucks. After about 5 years, I bought a Sailrite Yachtsman for, I think, $299 and sold the singer to someone on the dock
for $150. Two years ago, in preparation for retirement
, I bought the LSZ-1 and sold the old Yachtsman on ebay for $275 + shipping
When, If I ever sell the LSZ-1 chances are I won't lose $$ on that either and the ZZ feature will only enhance the deal to the new buyer.
No I don't work for Sailrite but I do sew a lot and love my new machine.
Skimp on something for the house, not the boat.