|What dscheidt likes about this machine|
This is a very nice straight stitch single needle industrial machine. It makes straight stitches, and does it very well. It doesn't do anything else. Modern industrial machines are a joy to use; they're no louder than a normal home machine, they have excellent control of speed, from one stitch at a time, to a stitch a second, all the way to 4,000 or 5000 a minute.
I have a DDL-9000BSS AK141WB. In english, that's the 9000B for medium weight goods (one S), with normal oil lubrication (the other S), equipped with an automatic presser foot lifter motor (AK141), and a thread wiper. All 9000Bs feature a direct drive motor, a thread trimmer and a control panel that provides settable needle up/needle down and speed and other settings. All of these are desirable features that make using the machine easier, faster, and less fatiguing.
The 9000 is a size larger than most single needle machines, and has 300 mm from the needle to the main body (just under a foot), and better than normal vertical room, as well. that makes it easier to work with bulky work.
What dscheidt does not like about this machine
Like most industrial machines, it's a pain to thread. Normally, threading is done by tying the new thead to the old with an over hand knot, and pulling it to the needle, so only the needle needs to be threaded. If for some reason (thread breaks, say) it has to be threaded from scratch, it takes a look at the manual to make sure it's right. Also like most single needle machines, the needle is threaded left to right. I can't manage that well, I have to use a needle threader.