They aren't the biggest pull anymore, and some of them don't feature the most exciting Pokemon, but a lot of them look really good. It annoys me when people just throw these aside like "trash" or "bulk"- the rarity creep nowadays really causes people to undervalue cool cards, even just regular commons with really nice artwork.
I really like tera ex cards, I'll definitely miss them in the new era. The texturing and the holo shine as opposed to regular ex cards really take them up a notch and make them look really good. I also think that the terastallized pokemon on the cards eliminate the heavy cgi look that a lot of the regular cards suffer from. I noticed the Japanese ones are truly on another level, and they are consistently so. The English tera cards vary, I have some that shine nicely, whilst others like the Ogerpon in the last photo pale in comparison.
by black_holeeee256