The arena has faced many critics from EV Zug management and fans for being too limited in terms of capacity.[2] In the summer of 2017, EV Zug added an additional 200 seats close to the boards, on ice level.[3] At the beginning of the 2019-20 season, EVZ CEO Patrick Lengwiler expressed his intentions to the city of Zug, the current owner of the Arena, to extend the capacity to 9,000.[4] The team is currently forced to limit season tickets sales to 6,000 due to the small capacity and could benefits economically from an extension as demand is high in Zug with the team being very popular.
The issue was again brought back in the media in September 2020 to try and make the city of Zug act quickly.[5]
The arena underwent expansion in the summer of 2024 to add an additional 600 seats.