I have used infibeam a few times now. Mostly the experience has been positive.
I did have an issue once with two shipments that subsequently got resolved to my satisfaction by what seemed to be a very concerned and professional set of people who did some quick damage control. I have been assured that it was a one time issue.
I have never faced any issue with the response times, as some other reviewers have claimed.
As for as the online shopping experience goes, the website does seem to have occasional issues these days(My transactions havent gone through on multiple occasions). But a failed transaction(on the website, but payment went through) was resolved immediately after a phone call to their customer service.
I found their "Magic Box" concept also to be interesting where they give some very good deals on some items. I guess it is a good way of getting customers to come back(and stay) for more.
(Note: Updated review)