This is a great wall sconce - we replaced a glass, builder grade one in the hallway, and the oatmeal fabric shade makes a huge difference and adds so much more warmth to the area. It was my first time doing anything resembling electric work, and it really wasn't bad, so don't be afraid to take this on as a DIY project! 
We have 11' ceilings, and with the sconce hanging about 80" high you can't see the bulbs from any angle, which is great. The 14" wide version fits two light bulbs, and the 16" wide one three - bulbs are not included. For our purposes 14" was plenty, and with two 60W-equivalent LED bulbs there is plenty of soft light in the area. 
One word of advice: don't overtighten the shade once you put that on, or it won't sit flush with the wall on the sides.