We very much like the Sumatra half-caf. We have been using SLCR's regular Sumatra and decaf Sumatra for most of our coffee drinking for several years. Our routine had been to start the day with a mug of regular andrto continuE with decaf Sumatra for the rest of the day (using a super-auto espresso maker).
We found the regular Sumatra to be noticeably bolder than the decaf but the decafremained flavorful aand complex while easier to consume in large quantities.
All-in-all, we prefer having full-café Sumatra and decaf Sumatra available to us. For now we are using the half-caf for our initial mugs of coffee, following up with your decaf Timor for the rest of the day.