Should tenants pay for utilities separately?

From a Moneyville (Toronto Star) article:

One of the big choices when it comes to looking for an apartment is whether to rent with utilities included or to pay separately.

Many older apartment buildings are bulk-metered which means the landlord pays the hydro for everyone and builds that into the rent. But many are now installing a type of smart meter in individual apartments that can measure when and how much electricity is being used by each unit. These so-called suite meters help tenants manage their energy consumption and better participate in Ontario's conservation efforts.

The question is whether it's a good idea or a bad one for tenants.