I've got the Tektro aero levers on my newly-built-up Centurion Comp TA, and I'd previously used the levers on my Raleigh aluminum racing bike. The road on which the brake lever pivots is press-fit into the plastic of the brake hood body, but it's not press-fit very tightly and over time the rod can migrate sideways. It doesn't happen quickly, and it's not much of a problem because every so often I press it back into place centered in the brake hood body.
But I'm wondering, how many people have this problem with this lever, and are there any easy fixes?
The levers used to squeak when I would clamp down on them during hard braking - I applied a drop of Phil Tenacious Oil to the pivot contact between the lever and the rod, and it took care of the squeaking but some of the oil seeped into the contact between the rod and the brake hood body and now the rod slides over a little more readily than it did before - still not a big problem.
On the whole, the Shimano aero brake levers seem a fair bit better-made, just more positive hinge action and less side-to-side play of the lever. But then, they cost more too, and I don't expect the Tektro levers to fail on me or anything.
Here's a picture and the arrow is pointing to the rod that I'm talking about: