The 2000 series, in my mind, are simply an evolution of the 55 level machines, with upgrades. Of the 2000 series, 3000 series and 4000 series compacts, the 2000 are my least favorite machines. Despite this, I have one (2320) and really like it individually. I do not feel the 2000 machines offer as much for the money as the larger machines, but they are still very nice nonetheless and fit into the size range many of us need. As far as computer controls, the 2000 series, to my view, does not have these. My 2320 shares a similar mechanical link hydro, etc., to older model machines which some folks find more satisfying. The ehydro and all those things come with the 3000 series. So, if avoiding computerization is a priority the 2000 should fit the bill. They are also very nice machines and an upgrade indeed, but not a revolutionary one.
John M