I use about 6 Direct Logic plcs a month and have lots of experience with the DL05,DL105, Dl205, DL405 families. I haven't used the DL06; but, KOYO is the best family of plcs that I've ever used. I have experience with AB, Modicon, Siemans, TI, Reliance, Square D, Telemechanique, and several others and I wouldn't use them again unless someone else was buying the hardware.
The EZ panels are great and I have no complaints with any of them. I built a robotic assembly cell 3 years ago with 2 IA robots, DL240 plc, and the Direct touch panel and it has run 24/7 for 3 years without any hiccups. I can do everything faster, quicker, smarter, and probably more reliably with this stuff than anything else I've used. I base above statement on volume of calls on existing base and experience of developing the same project with Direct Logic and then another plc. If you use a few, you'll see what I mean. I let other people pay for parties for plc salesmen.