Being used to multi-megabit/s 3G speeds and a 25 MBit/s VDSL line at home I expected to have a real bad browsing and general Internet experience when I recently experimented with a 3G HSPA connection throttled down to 384 kbit/s in the downlink direction and 64 kbit/s in the uplink direction. I was quite surprised to experience the contrary.
Yes, the web pages are showing up with a bit more delay than I am used to but apart from that, the general experience was quite o.k. Youtube doesn't work though without buffering as the videos require a bit more bandwidth. Apart from that, just the 64 kbit/s in uplink hurt, uploading pictures took a while. But still, quite usable overall, much much better than I expected!