Liming your floors is a beautiful alternative to traditional staining and finishing. It is important to remember that liming is like a whitewash, your timber with all its characteristics will still be apparent.
Liming will not lighten knots within the timber such as with species like Cypress Pine. The knots will still be very apparent. Liming does not give a continuous colour tone, as generally timber is not the one tone.
Liming won't necessarily give you a 'white floor'. For example 'Liming white' applied onto cypress pine gives you tones of greys, pinks, light browns and creams depending on the timber. To achieve a whiter look you would need extra coats of liming, though the timber's character and knots will always be apparent.
After the liming has been applied, the coating (waterbased recommended due to non-yellowing) will slightly change the look of the liming. This may be important when deciding whether to apply another coat of liming or not.