Well worth it. Great airy views.
https://www.flickr.com/photos/mika_kumpulainen/4715730298 If you have done Spicers to Teviot you should be ok - there are steep slopes to contour across but only what you would expect on the Main Range - just proceed carefully and stay on track.
Starting from Governor's Chair carpark take the short walk to the lookout then continue on towards the peak keeping near the top of the cliffline which is on your left. There is a track. More description here
http://www.southee.com/Bushwalking/Ch14-MainRange.html#label019 and scroll down to Spicers Peak, North-East Ridge
Scramble through a two-meter cliffline on the way up
https://www.flickr.com/photos/mika_kumpulainen/7666913090 (this is not the cliffline, but near)
As you approach the eastern summit cliffline base contour right
https://www.flickr.com/photos/stitchingbushwalker/2652094372https://www.flickr.com/photos/mika_kumpulainen/4715733004 climb over the boulder blocking the path
https://www.flickr.com/photos/mika_kumpulainen/4715728778 (you can drop below the boulder to get around it but it is steep and full of weed)
and go up a steep gully through the cliffline.
https://www.flickr.com/photos/21625419@N06/3018650535AT the top of the gully go left a short distance to the peak lookout.