135 is a bit of a hard focal length. Your images will turn up as portraits with obliterated backgrounds or paparazzi looking candids.
35 focal length is great for street, portraits, group, landscape. Probably the most versatile of all the primes.
I purchased the 135 for a great price used for only 800$ but ended up returning it after deciding it wasn't going to be much use. I do love my 35mm f2 hence I haven't upgraded yet.