Kepa left Chelsea for the Gunners over the summer after spending last season on-loan with Bournemouth.
“It’s been really good, really good,” he told arsenal.com. “I’m really happy to be here and I feel I’m already adapting myself in the team. It’s such a nice group of people and that makes everything easier.
“There haven’t been any surprises really. How a changing room works is always quite similar. But what I would say is that the quality of people here – on and off the pitch – is really amazing.
“In the first month or so you have to settle into the surroundings, off the pitch as well if you have family, but I’m used to this.
“Also we have had a few new players this summer, so we can all share our thoughts on some of the new situations for us.
“There are some Spanish players that I know from the national team, and that’s really good, especially in the first week. I knew Kai (Havertz) as well; he’s been a big supporter for me. We chatted a lot during the summer. He was on holiday with Martin Odegaard so we had that time to chat and share our thoughts about things.”
On competing with Gunners' first-choice keeper David Raya, Kepa said of his fellow Spaniard: “We work together and push each other hard. The main thing is to help the team. The main target of any goalkeeper is to help the team and to do your job.
"Obviously, it’s a special position on the pitch. We spend a lot of time with our coach Inaki, pushing each other, and training has been very demanding, which is good."