I seriously think this depends on how often you redecorate bedrooms. If you are willing to take the chance that a loft bed won't work in a few years, go for it. I know several kids who ditched the loft bed they so desperately wanted by the time they were 14-15 years old. I opted to do beds my kids could use as young adults but I don't tend to redecorate bedrooms frequently.
That said, the bed you linked isn't all that high so it may be a non-issue. And maybe you could have the legs cut down if your DS is bothered by the height into his teen years.
Mom to Two Wild and Crazy Boys and One Sweet Baby Girl