It may make a difference, but there's no way to know in advance what that difference will be. For one thing, there will always be someone cheaper than you.
If you're going to charge significantly more or less than most others in your area (not just geographical area, but what you're offering too) then it helps to have a reason.
Some are more problematic than others, like the dreaded phrase 'high class', but it comes down to marketing. 'Premium' is just marketing speak for 'expensive', after all.