Definitely Keurig here with dark roast coffee. My new Keurig is great as my original one died after 5 years full time RV use. It was a "mini" with no water reservoir and it worked well, but I do like the reservoir on my new one even if the unit is slightly wider than the old one. It has a small reservoir, but will still make 3 large cups on one fill and it isn't too wide to fit between my sink and window.
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof