Reliability - A site's reliability can be determined, first and foremost, from the feedback of its clients. No matter how a company proclaims their being reliable, this will never be recognized as true until a number of their clients have already verified it. Also, recognitions awarded by acclaimed organizations or societies can further establish a company's reliability.
Quality - This certain characteristic pertains to both the products and services being offered. By word of mouth, some products or services are already known to be of high quality. Others, however, make their claims through advertisements. Regardless of who or what is proclaiming anything, no matter how high or how great that may be, in the end all that matters is if the product or service speaks for itself. Quality is something that is constant, thus, this can be determined easily simply by experiencing or knowing the product or service being offered.
Affordability - Obviously, this is one guideline that is really quiet easy to understand. The more affordable a product is, the better. However, a certain level of caution should be taken into account in making sure that the products' quality is not compromised by the low pricing.
Convenience of Use - This mainly pertains to the website of the company itself. Though rarely mentioned as being of importance, the fact that a website's features can easily be used or understood can sometimes greatly influence some people's preferences. Sometimes, no matter how good the prices or quality of some products may be, if the site is difficult, complicated, and confusing to use, the client can automatically lose interest of it all. This must be the reason why a great value of time and effort is sometimes invested on the development of the site itself.
Other individuals may still take into account other considerations, depending on their personal prerogatives. However, in general, those mentioned earlier are the usual factors that influence the assessment of online drugstores. This, actually, will not only help the consumers who still have not made their decisions on what online drugstore to choose, but also the company owners who need to further develop their site's features.