I am by NO means and expert on anything (My wife can vouch for that!!)
However, we use the Micro800 series for all kinds of projects and they work GREAT, easy, fast to program. If using the Micro820, and we have several, we always set them up on a VPN networks this way we can be anywhere (as long as we have an Internet connection) connect, monitor, program, debug from anywhere.
They are for smaller projects I agree but they are well worth the time and effort to learn their strengths.
This all comes from my little experience.
Have a great day.