I Deal usually has a nice range of beans on offer for their espresso drinks, and the baristas pull a decent espresso. The beans they roast in house are decent, although their decaf usually tastes far too bitter for my taste.
Their espresso usually tastes clean and has a nice crema, a sign their baristas know what they're doing.
I like that I Deal only uses organic milk, and they have a number of non-dairy milks for those of us who can't drink dairy.
Pro-tip: if you are thinking of buying beans and a drink at the same time, go here. They give you a free espresso drink if you buy a pound of beans.