You need to consider the physical footprint, features included, and durability. If your water flosser doesn't fit well on your bathroom counter, it won't take up all the available free work space you have. If it doesn't have all the features you need or if it has more than you need, you won't get the best value for your money. Finally, if a water flosser doesn't stand up to regular use over time with inexpensive, readily available replacement parts, it doesn't provide adequate value either. My top choice for water flosser to use in my home is the Waterpik WP-900. Space is limited in the master bathroom and a rechargeable sonic toothbrush is a must for my dental care routine. Also, I like that this model has multiple pressure options for the waterpik, as tenderizing my gums like steak isn't something I particularly like. Waterpik is also the preeminent brand of water flossers, so tips and brushes can be easily obtained at your local pharmacy or department store. The WP-900 can't be beat for the price and Waterpik products have an excellent reputation for durability and longevity. When purchasing a water flosser for home use, choose a WP-900 from Waterpik and choose the option that offers both quality and