Zortrax m22 - Most of what I’ve heard and seen about this printer has been positive. Excellent manufacturing, easy to use, very quiet, good volume, and very reliable. The build quality is good, but the resolution of the printer is a little odd. It boasts a very fine resolution in the X and Y directions, but a more mundane resolution in the Z direction. Not to say it’s bad, but the printing capabilities are inherently anisotropic. Some people love the perforated print bed, some people hate it. I’m more in the latter category, though that may just be some bias leftover from my bad experiences with perforated beds on other printers. This is most likely the most reliable printer on your list. (My friend had a print running when an earthquake occurred and the print did not fail. I’d say that’s a pretty good testimony for the Zortrax.)
Ultimaker 2+ - This is a good printer. Extremely easy to use out of the box, very big, and boasts very high print quality. Many people swear by it, and they’re not misguided when they do so. But this printer is also about $700 more than the Zortrax. Is it a better printer? Yes. But not $700 better. This is by far the easiest to use machine on the list.
Sindoh dp200 - This is the printer I have the least experience with. It’s the only one on your list I haven’t used myself. Still, everything I’ve seen shows that it’s an excellent printer for what it costs. In fact, it’s got one of the largest print volumes for a ~$1000 printer. That being said, the Sindoh is much less expensive than all the other printers on your list. It is not going to be as reliable, long lasting, or make as good parts as the Zortrax or the Ultimaker. Also, it requires you to use their proprietary filament cartridges, which is a feature I detest in Printers. Also, since these cartridges ship from US, you’ll probably have to pay hand over fist for shipping every time you need new filament. So, if you are thinking about a ~$1000 printer, I’d look at the Prusa i3 MK3’s.
Do yourself a favor and cross the Replicator 2 off your list. It’s far too much of a hassle with far too little advantages for far too much money. It’s just not worth it.
I will take the liberty of adding a few printers to your list. You should check these out.
Lulxbot Taz 6 - They’re pricey, but goodness I love these machines. They’ve printed every material I’ve thrown at it. (You can make your own filament from water bottles. It’s super duper cool.) Also, they sport a massive build volume. These are more for experienced users though; not to say a beginner can’t use them, but a beginner might not be able to utilise these to their full value.
Makergear M2 - These are roughly the same price as the Zortrax printers, but offer a wide range of customisation and upgrades that can turn these into some of the most capable printers on the market. Even out of the box, the Makergear can go toe to toe with some of the highest grade printers. It’s a great value for your dollar.
Prusa i3 MK3 - This is the best all-around printer on the market right now. It is very similar to the Makergear actually, but costs a $1000 less. If you handed me $2000 and told me to go buy a 3D Printer and all the accessories I needed, I’d probably go out and buy two of these and spend all the extra on filament. They’re just fantastic printers for the price tag.