My wife and I have just spent a very pleasant afternoon doing the "Chocolate Lanes and Arcades" Tour. Amanda was our guide and as other reviewers have mentioned, she is very knowledgeable about chocolate and about the venues that we visited. Also, Fiona who works for the tour company came along to refresh her knowledge about the places visited as she hadn't conducted this tour for a while. Good to see that the tour company is making an effort to keep their guides up to date as I understand that the places visited change from time to time.
We were a little lucky that there were only four people on the tour so we got a very "personal" experience. We started with introductions which got everyone comfortable and then visited Haighs near the tour start point in Block Arcade. Detailed explanations about chocolate tasting technique including the opportunity to taste a roasted coffee bean were given. We also received descriptions of the ways that chocolate is manufactured.
In all, we visited six establishments and sampled chocolates (of course!), tea, coffee, hot chocolate drinks, cake and even matched wine (at Adelphi). I now know about some very nice places to visit in the City that I had not visited before. Of course there were opportunities to purchase the wares from the various establishments visited and most offered discounts to people participating in the tour.
I think you get more out of this tour if you do it as a couple or with friends. You can try a broader range of the samples available this way. Don't eat beforehand as you end up getting plenty of chocolate and other things on this tour. Water is provided (and recommended) between establishments.
I enjoyed the afternoon and would consider doing one of the other tours offered by this company in the future.

We organised the Chocolate and other desserts tour for a girls weekend just past. The website and reviews looked good and we thought we were in for a great afternoon out. The three of us each paid $99 for the 2.5 hour tour expecting to visit some of Melbourne's hidden chocolate shops in some interesting lane ways. Our first stop was Haigh's where we given one milk and one dark chocolate button (which you can walk in and try for free as a customer of the store anyway) and a truffle. Off we went next to Koko Black where we were informed of the beautiful upstairs sitting room where you can relax with a drink etc. Thinking this is what we were doing that would be good, but no. We got to go into the store and choose one truffle to try, valued at about $2.70. We then went to the Emporium where the macaroon tasting at Zumbo's allowed us to pick one macaroon ($2.80) before heading to a cafe that does liquid nitrogen hot chocolate. This was entertaining but there was 9 of us on the tour and our little group had 3 so we were asked if one of us could have a half serve as you only got one between two! The half serve came with the hot chocolate and a marshmallow, no icecream or raspberries or liquid nitrogen. Next stop to Lindt where we were given 3 pre-wrapped Lindt balls and 10% off any purchase! The final stop was the Adelphi Hotel where the dessert restaurant Om Nom resides. We were sat in the foyer of the hotel and enjoyed another 2 truffles and a mouthful of wine! I don't know how this tour costs $100 considering we went to two quite large chocolate companies and were given in total 4 truffles, 3 Lindt balls, 1 macaroon and half a serve of hot chocolate. The tour company made $900 off our walking group yesterday and if I could I would be asking for my money back.

We had a lovely Saturday afternoon walking through laneways of Melbourne and finding chocolate shops and having tastings.

Amanda is a great tour leader. She speaks clearly and includes everyone in a well crafted tour. The chocolate sampling and explanations were good, as were the discounts at some places. The arcades and laneways were also worth seeing. The speaker at the last place didn't turn up and Amanda had left so wouldn't know.
Thanks Amanda for a great tour and your company on it.