2/3. Since this is a home/family set, I'd suggest 3.5" to 4" kings. A literal middleground is the recommended FIDE/USCF height of 3.75", but to me, piece-to-board proportions are the most important factor. For example, my 4" HoS Liberty and Latvian (Mordovian) pieces are MUCH less crowded and easier for me to analyze with on a 2.25" square board than the 3.75" Bobby Fischer Ultimates.
4. The aspects that make my pieces feel great in the long term are the way they look, handle, wear, inspire, and make me feel. Historical, cultural, and sentimental significance are also big factors for me. One of my absolute favorite sets that checks all of the above is the aforementioned Latvian (Mordovian) reproduction I purchased from RetroMaximum (Etsy) in the midst of the Russo-Ukrainian War in 2022. I think I can speak for many of the CB&E regulars when I say there's a certain "je ne sais quoi" about finding a set that feels special and speaks to you. I've continuously chased this feeling since I dove into chess in May of 2022, which is a direct result of all the passionate contributors to this forum section. A special thanks to all of you.
5. I have no personal experience, but I hear DGT can be fun for online games, or useful for storing local games to review/analyze/study. However, you don't necessarilly need DGT to enjoy online games, as there's now open source software that accomplishes this via webcam.
Below are non-exhaustive suggestions based on personal ownership, research, and opinion (in no particular order):
Romanian/Hungarian:
- Sandór Bíro's national set via birosandor64@yahoo.com (I own two)
Brazilian:
- Dirk Dagobert's offerings via personal website (I own one vintage Braganca. These aren't official national sets, but they're the highest regarded Brazilian sets amongst chess clubs/players in Brazil)
Croatian (Dubrovnik) Designs:
- Gregor Novak's offerings via Noj Slovenia (waitlist full until 2025, but considered the crème de la crème of pieces by many here)
- Oldset's offerings via Etsy
- Mandeep Saggu's 1950 offerings via Staunton Castle
Soviet Designs:
- RetroMaximum's offerings via Etsy (I own one)
- Oldset's offerings via Etsy
- ERWoodLeatherShop's offerings via Etsy
(All exceptional carvers based in Ukraine)
- Gregor Novak's offerings via Noj Slovenia (waitlist info noted above)
German Designs:
- DGT's offerings (I own one non-electronic)
- Dener Mejía's offerings via Incaisa (specifically the stunning Alpha Sumo collaborative redesign by Pawnerai, who's one of the great contributors to CB&E).
French Design:
- Improved French Lardy via Royal Chess Mall
English Designs:
- Mandeep Saggu's offerings via Staunton Castle
Boards:
- Rechepado Ferrer's offerings via multiple vendors
- ColoradoWoodWorker's offerings via Etsy
- SakisTsiogkasWood's offerings via Etsy
This is such, such a detailed and elaborate answer. I really appreciate it!
Took a bit of time trying to watch each and every one of them, and decided to get a Dubrovnik set, as I liked the middle ground of practicality and elegant, simple design. However, as Noj's products were reserved for up to 2025, I am leaning towards to Dubrovnik chess set from Royal Chess - looked decently similar enough, while being able to make it in time for a gift. Thinking of getting a good chess piece container (probably something like a humidor) with it.
Speaking of which, do you think waitlisting for over 3 years is worth the time? I believe in 3 years I might want different chess pieces for variety, and if I order new chess pieces by then, it'll probably take additional years to get the pieces anyway.
He hasn't replied in two weeks. Just another time-waster I guess.