So overall, if you are only cleaning pitches, these might be an ok bet. However, for most aid climbers, we would strongly recommend our Best Buy the Metolius 5 Step Aider or our Editors' Choice the Yates Big Wall Ladder.
There is a similar version of this aider made by Yates called the Yates Speed Stirrup. The Yates is a little heavier and the buckle has its pros and cons. We lean more toward the Metolius version but both are pretty comparable.