I first visited Tenneriffe many years ago and could not find anything worth climbing. I climbed a few new routes out there in early 2000. One of the climbs 'Finger Lichen Good' I thought to be very good. Other climbers climbed the route and verified both the grade and the quality, although I admit the rock quality is not so good on the second pitch.
More recently I revisited Tenneriffe to edit this section of the upcoming Eastern Districts Guide. Using the old guide book it was near impossible to locate many of the routes. To my surprise me and my climbing partner discovered dozens of excelent unclimbed lines. We started climbing the naturally protected lines ground up first ascents then moved to bolting lines and slabs. At the same time a group of climbers from Northern Victoria were also rapidly putting up new routes
There are now about 100 recorded routes at Tenneriffe. There is everything from multipitch slabs to single pitch off-widths. The rock quality is generally very good although there is
some climbing on poor quality rock.
Personally I believe that Tenneriffe offers the best quality of climbing with 1.5 hours of Melbourne but my judgement is somewhat bias. All I can say is wait for the new guide book, try some of the routes and make up your own mind. I've taken many climbers out there and run a VCC club trip to the crag and most people love the place but some people do not like it.