http://www.teararoa.org.nz/thetrail/i've done small pieces of it. I've looked at where it goes and have travelled through other areas where the trail runs. I researched it to see if i would want to do more of it.
its not designed as solely a bushwalking trail.
theres a fair bit of road bashing in it, a lot of it goes through farmland,
it was designed to cover a mixture of back country terrain and areas of historica significance in nz.
if you're looking to see the most scenic places in nz then i'd give most of it a miss.
i've tramped over a fair portion of nz and there's very little of it i've tramped where the trail runs. so its not somewhere i've chosen to want to tramp much of.
compared to the scenery that is available in nz, personally i think a lot of the scenery on it is pretty boring by nz standards, i'm not motivated to cover much more of it.. i watched a slide show of someone who has covered most of the trail but it just reinforced by thoughts about the trail.
its not all well maintained, some stretches require navigation through thick overgrown bush. its still a work in progress.
it vaguely runs north and south, but because of land access issues, in various places it takes large snaking deviations to connect up different parts of it by getting around land where access was denied by private landowners.
some people just create their own version of the trail and deviate to take in the part of the country they would rather do.
i met an american lady at the end of her trip to nz, she had come to do te araroa but was quickly disappointed by the nature of the walking and changed her plans totally to do the dept of conservations great walks instead, not a bad idea, definitely more scenic, and only a couple of the walks are on the te araroa trail. it's nothing like places like the appalachian or pacific crest trail where theres more of an infrastructure for people to mail ahead supplies and gear to unofficial post offices that will cache it for them near the trail. you have to work out how to reprovision yourself and that will mean deviating some distance off the trail in places.. in a lot of places you'll need to provide all your camping gear, it does go through a lot of remote areas.
some people have a view of nz as some sort of scenic shangri la and just get disappointed by Te Araroa... theres a lot more farmland to nz than there is wilderness and the trail covers a lot of that land. don't know about you but i've spent too much time staring at farmand and I'm not motivated to spend any more time than i have to walking through it.
but good on anyone who completes the trail if its the sort of challenge you are looking for to "complete a long trail" and all the challenges it throws at you then they have my respect. perhaps i'm too fussy and spoilt for choice by nz scenery, then so be it.
bit disappointed by the govt though, they gave 5 million to make the trail then gave 50 million to throw at building bike trails around the country, needless to say the standard of the bike trails is just a bit better than the standard of te araroa. the money was given to local councils to develop the cycling trails, in my opinion there's been mixed results on the wisdom in their decision making but still a bike trail is a lot better than no cycle trail... it was lucky the money ws ever allocated, the finance minister wanted to veto it, but it was a pet project the prime minister wanted put in place because he had seen the economic benefit of the otago rail trail cycleway, just shame he doesnt have the same enthusiasm to our walking trails after cutting 50 million from doc's budget, looks like he stole from peter to pay paul anyway i'im going off topic
from the land of the long white clouds...