Flexible path to buying a home: A lease option could be a suitable alternative if you aspire to become a homeowner but can't quite afford it just yet. Using this type of contract, you get a little more time to potentially save toward the down payment or work to improve your credit.
For example, a tenant and landlord may agree to a five-year lease with a five-year option to renew. At the end of the first five years, the tenant is given the chance to continue the lease for another five years. If you think you may renew, be sure to bring up extension provisions with your landlord.
Stability and Consistency- Longer lease agreements provide landlords with a more stable rental income. With fewer turnovers, landlords don't need to spend as much time and resources searching for new tenants and preparing the property for each turnover.
It really depends on your situation 2 year lease gives you the stability of a good tenant, avoids vacancy and maintenance... that's adds up On the other side it takes away your flexibility if you decided to sell... specially at below market rent. Your rent increases sounds too low for the market.
An option to renew is a clause in a commercial lease that grants the tenant the right to extend the lease for an additional term, typically under the same conditions as the existing agreement but with a varied rental rate.