I'm only familiar with the Rondo, have the table top model and love it.
Don't know if the other models are reversible, that is, if there's a belt before and after the rolling device, so you can roll the dough through, set the rollers thinner, and roll back to the other side. The Rondo does this.
If all the other models are the same type, reversible, than all machines will give you the same quality. You should be able to go as low as 1/2 to 1 mm. Most machines are constructed so it ismpossible to set the rollers thinner than 1/2 mm because if the two rollers touch, then you have some problems.
Where the machines differ is in quality of construction and the scraper assembly. There should be a scraper resting on the top roller, and the bottom roller, on both sides. On some machines these scrapers are very hard to remove for cleaning, or wear very fast, or have an awkward method of holding them in place that traps alot of dough and flour.
Some machines are 3 phse which may require new wiring. Rondo is a 3 pahse, but has internal wirinig and some kind of a built in phase converter, so it only requires 220 volt.
I don't know if the Taiwanese brand is the same as Thunderbird (
Thunderbird Real Estate - Buy and sell homes or land in Santa Cruz County- Aptos, Santa Cruz, Capitola, Boulder Creek, Watsonville. Foreclosed Properties and Eco Homes.). If so, it is probably a 120 volt single phase machine.
Choose the machine you are most comfortable with, but above all: Choose the machine that is sold by a company that will service it, and that stocks parts for it.