Mark T.
Yelp
You know something, I really enjoyed my city tours with this company. I have used Sandeman's very often in the past, but their tours were not available, and honestly, I am glad these folks were here instead.
For those of you who don't know, Sandmann's has a free city tour (where offered) that lasts about 3 hours. However, if you are then interested in other tours (Alternative, Old Town, etc.) you have to pay for them.
Here, this is not the case, the company offers three different tours (City Tour, Old Town, and Gamla Stan (I think)). All of them work on a free (tips only) basis. I spent literally a whole day going on all three tours they offer... and there is enough time to grab a quick bite in between and head to the next one.
The guides I experienced the city with were Ellen and Ben; both of them were awesome! They were informative, high energy, and friendly.
Tours were a good combination of seeing lots of stuff, as well as hearing detailed, but not boringly so, explanation of what we are looking at, the story behind it, and how it related to the city.
Tour length of about 90 minutes was actually quite nice, especially when you consider that you can take all three of their tours for free.
As for start locations, they are both easy to get to by the T-Bana. The brochure details where the first and third tour meets, but more detail of the second tour would be nice. Guides are holding signs, but no the much more visible umbrellas.