I've been a customer for many years and while no company is perfect, in the past they have been good for the most part. I was more accepting of issues when they were smaller, but they've actually gotten worse - not better over the years. Most companies have growing pains, but Rightstuf seems to embrace them rather than fix them.
Customer service is subpar for a company of their size; ticketing system is abysmal. They are more than happy to help you up to the point where it is to fix an issue where they screwed up. If it was their screw up, don't expect them to admit it or pay for the return shipping. You're on your own and you better hope the package arrives perfectly or they will deduct perceived damage from your refund. I expect this type of behavior from eBay sellers, not a decent sized company like Rightstuf. If you think getting a manager will help you, think again. They are email warriors - rude, egotistical, and downright nasty at times.
Website looks good on the surface, but as soon as you start ordering you see the issues pop up. It's slow, has multiple bugs, and isn't very well designed.
Their packaging is the only thing they have going for them. I'll give them that. It's excellent. Problem is, they will never believe that they sent you something damaged, so unless you want to spend a lot of money for the return, you've pretty much negated any benefit to purchasing from them.
My advice is to purchase your blu-rays and anime related items from other retail outlets. Rightstuf might be enticing since everything is all in one place, but you can get better pricing and much more professional customer service elsewhere.