Alpha axis pro is a great one it is a crank with stand 6 point mounting system with 360 racquet rotation. I string in a proshop many racquets daily and havn't had any problems with it. check out www.nothingbuttennis.com for more details on it.
I have an Eagnas Hawk stringer that I got about 10 years ago. It has the manual crank tensioner. I've thought to replace it a couple times but as long I keep the clamps clean and tensioner calibrated it does a great a job.
I have a Eagnas 300, looks just like the Prince Neos1000 but not as expensive. Easy to string with,if stringing procedures are good and you can calibrate it properly every once in a while; you can get a very accurate string job.Probably not good for production but for personal use, you can't beat the price.
I have a KlipperUSA Klippermate stringer, 2pt mount with a manual swing weight tentioner. Perfect cheap stringer to buy if you are stringing for yourself and friends.
Small package/portable, affordable $150 with string samples, great manual, durable machine, never need to calibrate, fast mounting, yellow color :) , very good and heavy duty clamps, lifetime warranty, oh and the factory is like 10min from my house.
Need to clean the clamps after stringing natural gut, 2pt mounting system, flying clamps are usually slower your stringing time, sometimes too much or not enough string slack between the racquet and the tensioner, need to readjust once in a while.
Just got my new Prince Neos 1000....guys....you can feel quality in every pull and every time you clamp a string. This machine is so easy to use and feel so solid;I'm absolutely glad I got it and the fact that I wasn't able to find one bad reference on this machine makes it a whole lot sweeter.
PRINCE NEOS 1000.........................The best.