Textmate 2 - It's such a well-engineered piece of software, and it's gorgeous.
Bialetti Brikka - Such an elegant design, and it makes delicious coffee, Italian-style.
Nespresso - If Apple made espresso machines. The espresso tastes great and it's easy to clean.
Patagonia MLC 45L - My pet peeve with luggage is that the good stuff tends to be heavy. Not this! It's big enough for extended travel, has backpack straps if you need it, durable (w/ lifetime guarantee), and is well-designed without being "design-y," if that makes sense.
Charles Schwab checking account - Okay, not a physical product, and doesn't have very impressive visual design, but well-designed regardless. No account minimums or fees, the best customer service I've ever experienced, no foreign transaction fees, and they rebate any and all ATM fees worldwide. It's the absolute perfect money bucket.
Blundstone boots - The perfect footwear if you're unsure of conditions. Hiking--check. Going to dinner--check. Walking in the city--check. Walking through snow--check. Traveling--check. They're very, very comfortable.
Elixir (programming language) - This is what happens when a tool is made for one's own use, as opposed to being designed for a hypothetical "other" who doesn't exist. It's magical.