Just got this lens and I really like it for travel. Nothing beats a prime lens and I love my primes but this is just to convenient. Plus this copy is super sharp.
IMG_2935 by Brandon712, on Flickr
IMG_2918 by Brandon712, on Flickr
I agree, this lens is a hidden gem, it's extraordinary when it comes to travel, or street. BUT I too am very attached to my primes, and this lens cannot even come near a prime lens. BUT it's still a phenomenal lens.