Rock_Robster - my experience was very similar to yours - OK for the first couple of days due to the steroids, then the day after disconnect I felt like crap and then slowly got better. The first couple of rounds I was feeling good after four or five days, but this stretched out to a full week after ...
My wife an I had a week long trip during the middle of chemo. Initially it was going to be during my 'good' week, but one round got delayed due to bloods, but my onc was happy to delay chemo for a week so that we could have a break. Didn't have any issues with travelling other than a SCUBA tour comp...