The 25-year-old striker joined Leeds United earlier this summer.
The Swede swapped Kalmar for United this summer in a reported £2 million deal, signing a three-year contract.
The 25-year-old has only been training with his new colleagues for a week or so following the return of pre season, but Antonsson is already delighted with his move, reserving special praise for the rest of the squad.
"It's nice. I'm enjoying every day and every day is better for me", Antonsson told LUTV, via Inside Futbol.
"So I am happy. They are an amazing group and very good people, so everything is good."
Antonsson was the first of six summer signings so far, with his arrival preceded by successful moves for Hadi Sacko, Kyle Bartley, Robert Green, Matt Grimes and Kemar Roofe - though only Antonsson, Green and Roofe were signed permanently.
Manager Garry Monk - who replaced the harshly-sacked Steve Evans earlier this summer - will be hoping for his pre-season recruits can hit the ground running - they might have to.
Time is not a luxury afforded to any Leeds manager since Massimo Cellino bought the club a little over two years ago, and if the Whites' promotion hopes don't look very promising by, say, October, few would be surprised to see the Italian wield the axe once again.