I was encouraged when looking at ProFootballFocus's grades for left tackles at Branden Albert's progress this season.

Through 4 games:

2 Sacks allowed
2 QB "Pressures" - Ranks him 3rd among all starting LT's. For some context, D'Brickashaw Ferguson and Jake Long have both allowed 2 pressures and 3 and 4 sacks, respectively.
0 QB Hits

Obviously, hits don't include sacks allowed.

Nevertheless, it's tough to grade a LT unless you're watching every play to see how he's doing. I do understand that the Chiefs don't throw nearly as much as other teams, so the stats might look slightly better than they are. Still, this is encouraging. Overall, taking into account run and pass blocking, Profootballfocus has him ranked as the 6th best LT through 4 games.

Last year he finished the season as the 19th best LT, giving up 10 sacks, 7 other QB hits, and 23 pressures.