Assuming KDB is the last bit of business for us I wouldn't go as far as others that say it's been an amazing window. It's been good but it's the minimum we needed, anything less than what we've done would of been a disaster for us. Txiki's done his job this window and done it well. we identified positions, identified the best suited, attainable players and got most of them. Satisfied would be the best description.
As for the entire market, there seems to be a distinct lack of quality everywhere right now (especially strikers) or perhaps the elite have just risen to a new level and make the others look substandard? Either way, it's meant the top teams are very reluctant to let any 1st team player leave and it's meant the players that are available are being fought over by more and more teams.