The caliber of your space dictates the caliber of your tenant.
One of the keys to being a successful investor is having the right tenants. Rather than depending on luck to get quality tenants, why not ensure you get the best right from the beginning. The biggest mistake that landlords make is taking the reactive approach to dealing with tenants. Being proactive will ensure you're in the driver's seat and that things run as smooth as possible. Never discount the fact that there are great tenants out there looking for great places. Typically the better condition your place is in, the easier it will be to rent, tenants will be willing to pay more, stay longer and be less likely to miss a payment because they don't want to lose a the place.