I have one.. I lucked out and found it in a dusty corner of a camera shop
and got it for a bargain! I wont say how much as it will make you sick
Its a super lens. however I would swap it for a 24-70 nikkor .. maybe .. The biggest issue with it compared to a
modern lens is the coating is not as good. so it tends to flare a little when shooting into light. there is also a known weakness in that there are batches of this lens that tend to have veiling flare. Ie the rear elements tend to get a bit misty/dirty. You will need to inspect it to see it. ie look through it from the back into something bright like an open window to a bright sky or doorway etc...
Its is Very very sharp at 35mm edge to edge on FF. Great for landscape, esp. when stopped down a little. 35mm is its sweet spot in terms of FL. however even at 70 its no slouch. I use it on my DX cameras mostly but I do slap it on my Film camera for landscape shots at 35mm from time to time. My main use for it is on my DX for portraits and for my shoots with some local community theatre co. I also use it for macro with my raynox DCR(Close up Filter - 3 element!).
Why I would find it hard to give up? well the filter ring is 67mm which fits my snap on Raynox. Its so much smaller than the new monster 24-70 lenses. IQ beats most third party lenses in that range except for the flaring when shooting into the sun but I don't do that often
. 35 mm is sharp! on my DX its like a prime normal ... with zoom!
Would I get one now? .. Yup... If you don't find the range restrictive. On FX you really need to consider it as a wide normal that can zoom a little. on DX its just about perfect as a portrait lens! I am waiting for tamron to bring out a 28-75 VC version with great IQ so that I can upgrade. ie I would like a wee bit more range, + VR, + better flare control. I am happy enough to wait. Its all I need (and more) in a lens in that range.