Really value for money.
The tour takes you to a very Danish 'kolonihave' where the guide serves coffee and tell you about the garden 'Sonderbro'.
It takes you to the newly build quarters in Sydhavnen and to the green gardens of 'Musikbyen'.
If you want to get of the beaten track I recommend the tour. You should be able to bike app. 20 km in 5 hours (not very hard).