I’m considering these two machines but I’d like to print in ABS, is anyone successfully printing ABS? If so, any tricks or recommendations?

We recommend setting your hot end temperature at around 235 and 255 °C when 3D printing with ABS.
Set your bed temperature between 110 and 130 °C.

Apply one coat of Bed Adhesive for ABS prior to heating the bed and ABS parts will stick firmly to the glass without warpage. One light coat of solution can be used for several prints. It specially formulated the proprietary solution to not only promote excellent adhesion but also to make part removal easy. Once the 3D printed parts have cooled, they will dismount from the printing surface with minimal effort, leaving a clean and smooth bottom surface.
Recently I try one new solution called wolfbite.