The condition of your condo (how updated is it? does it have stainless steel appliances, granite counter tops, and an in-unit w/d? how big are the bedrooms? is there parking included? is it a garden unit or above-grade unit? how high are the ceilings?), the building in which the property is located (is the association together and keeping the property clean and maintained? how many other units are for rent or rented in the building? what other features does your building have - or not have - that make it unique?), and the location of your property (how attractive is the location? is it close to public transportation and neighborhood amenities? how many other units in the area are for rent?) are all factors which affect the market rent value of the condo.
Additionally, the time required to rent the property may likely be affected by how you market the unit - whether you hire a licensed real estate agent to provide advertising and list it on the MLS, how available you or that agent are to show the property and respond to inquiries from prospective renters, etc.