I like shopping with Lifesource mostly because I love the mission. However, the service, efficiency, and reliability is also the same as what you would expect from any other bigger online shopping site. It's very easy to use and it always surprises me how quickly my shipments arrive. The prices seem to be reasonable and the quality is as good as any other supplements out there. The only reason I would give it four stars is because I think it would be amazing if they had some tool you could use on the site to make sure that your supplements are not doubling up on any particular nutrient or vitamin. I think sometimes I will buy things and then I look at them closer and see that I'm getting too much of one or more things. Another thing I think they could offer on the site and charge for is remote consultations to help people make the best purchasing decisions.