When purchasing a hearing aid it is important to understand which features are most important for you based on your lifestyle, additionally, certain types of hearing loss require more sophisticated hearing aid capabilities than others.
Find someone that you TRUST will give you advice to help you, and more importantly find a place that does REM (Real Ear Measurements) on EVERY SINGLE fitting, a poor quality hearing aid using REM will perform better than the top-of-the-line aids out there using only first fit.
Hope this helps…