Nice and sturdy. Made in one piece, so there's no ugly seam running down the length of the glass. Some cheaper glasses have slightly uneven bases; these are perfectly flat. The taller glasses stack almost 4 inches deep into each other, so a pair of stacked 17oz glasses is only 8.5 inches high which will fit almost any divided cabinet. No lumps, ripples or other imperfections around the rim, and they're strong. The design isn't too fancy for a casual setting, but the simplicity makes them suitable for a special occasion or everyday meal. After being disappointed with my two previous glassware purchases, these are perfect for my needs and I hope to own them for many years.