The Canon EF-S 10-22mm f/3.5-4.5 USM, a very light and small equivalent to a 16-35mm on a 35mm camera, is well suited for landscape or indoor photography. For example, the non-rotating front element eases the use of polarizing and graduated filters, which are very popular for landscape photography. It is to be noticed that this wide angle zoom can focus at a distance down to 24 cm.
Its Super UD glass lens and its two aspherical elements perform should give it a good image quality. Let's see if the DxOMark measures confirm this.
If we look at their landscape Use Case scores, for which they are made, the EF-S 10-22mm f/3.5-4.5 USM wins with an excellent 4.5 stars where the Nikon AF-S DX Nikkor 10-24mm f/3.5-4.5G ED only gets 3.5 stars.
In conclusion, the Canon EF-S 10-22mm f/3.5-4.5 USM is a good lens for landscape, thanks to its low chromatic aberrations and its minimum distortion.