I just flew EVA business class BKK-TPE-SFO.

Some scattered thoughts:

BKK-TPE: Newer business class seats on the 787. Still a bit uncomfortable on my rear after 3 hours as the plane approached TPE. Decent room and storage. The overhead bins were more than spacious enough to handle two carry-ons and a backpack. IFE was responsive, but not much choice.
TPE-SFO: Older reverse herringbone on a 15 year old 777. Very uncomfortable seat. While better once the mattress pad was added, it still wasn't great. At 196cm the seat was difficult to get into and out of. I never even tried for full lie flat. Storage is a joke. The overhead bins were quite shallow compared to the 787. The lone power port is located in a horrible location encroaching on my shoulders. The IFE was small, low res, unresponsive and lacking in decent choices. The in flight map had no ability to be customized and often was only in Chinese.

The in flight food was mostly decent. My Massaman curry on the BKK-TPE leg was very tasty. The garlic bread was good if rather cold. As it was a short redeye flight I would have preferred a single tray serving rather than courses. On the TPE-SFO leg the meals were fine. My beefsteak was underdone. I ate the outer edges and left the too rare middle. The dauphine potatoes were a mixed bag. The golden potatoes were a salt lick while the beetroot dyed potatoes were fine, but I don't like beets. As such I skipped the beet soup. I also skipped the cheese course and dessert to get some sleep. I avoided alcohol except for the pre-departure sparkling wine which was almost as bad as some $5 swill I got for free when graduating from college. Breakfast was the pork noodle soup. It needed white pepper but the meat was tender and the broth was acceptable.

Service on my flights was terrific. I didn't bother to wear my pajamas (I think I got a size too large) or the amenity kit (I'd have preferred black instead of tan).

Lounges: BKK's lounge was rather good (retro-futuristic decor notwithstanding). Lots of power ports and seating. The food was okay. I kept to the dim sum, chicken wings, and wonton soup. The chili oil for the soups was shockingly spicy. The vegetarian pizza was also decent. Not a problem to get a shower reserved. TPE at breakfast time was pretty bad. Crowded, poorly designed, small restrooms. The food sucked. Everything was bland or tasted off. How is a radish cake fishy? No bottled water on offer? At least there was yogurt. I left the lounge after 45 minutes to explore the duty free shops and buy a bottled water and croissant.

If I go back to Asia in a couple years, I think I'd like try one of the Japanese airlines.