Coffee blends are fine, but we have found them to be inconsistent in flavor and richness from batch to batch. Have you tried any single-source Arabica coffees? "Single-source" meaning not a blend of different type beans.
I don't know what Amazon offers in single-source coffees (haven't checked) but there are quite a few good roasteries that sell directly online. We have been using
Fresh Roasted Coffee LLC - Free Shipping Over $35 for some time and are quite satisfied with their products, prices and on-time shipping.
(Disclosure; we have no financial interest in FRC or any other coffee roaster.)
Our favorite is Ethiopian Yirgacheffe, but there are quite a few nice single-source coffees out there and we try others from time-to-time just for variety.
TJ