I was on two LH flights that were At least 75% business. I would not pay the premium for the product alone but would do it as part of a intercontinental flight with a connection. Yes you do get luggage, lounge access (variable), more space and some food/drink but I find the price to be quite high in comparison. Also most of the flights within Europe are rather short when compared to the distances domestic flights can travel in the US. Of course there is LHR-IST but those flights still max out at 4 hours vs 6.5 for US domestic.