I’ve drank all kinds of oolong from cheap to ultra pricey and this stands out as a great classic brown oolong. Brews true dark brown, with a strong but mellow taste to match. Don’t overbrew it- but if you hit that sweet spot between weak and “been in the Chinese restaurant teapot for a week” spot, it’s a solid contender. Dirt cheap but beats out teas that are twice the price.
Yamamatoyama is a solid choice, though the quality of their domestic Japanese teas far exceed out their export-quality stuff. It’s actually a very high-end tea company in Japan, so they save their best tea for their domestic market. Even so, this export-grade oolong holds up well for an everyday, unfussy brew. I always recommend this one to friends looking for a simple “Chinese restaurant” type tea.