Jol's contentment comes despite a deadline-day move for Marseille's Andre-Pierre Gignac breaking down.
The Cottagers have struggled in their attempts to juggle Europa League commitments with the Barclays Premier League this season, securing just one point from three games.
Jol admitted the west Londoners' poor start was mainly due to their threadbare squad and subsequently bolstered the team with three new signings on August 31.
Zdenek Grygera and Orlando Sa were brought in from Juventus and Porto respectively, while Bryan Ruiz joined from FC Twente in a £10.6million deal despite late interest from Newcastle.
"I feel like everything went well for us - with Ruiz and Grygera, for example," said Jol.
"And Sa as well because there will be a few clubs who don't have that [back-up] player and are still without players.
"But I have to say [the transfer window] was a bit long.
"If you have a transfer window it takes four, five, six weeks talking about people coming or leaving. It is a bit unsettling.
"I am happy now with the squad. We now have almost two players in every position.
"Maybe not like Manchester City or Chelsea but I think we did well.
"We had 10 or 11 players left and we got six or seven players in so we are fine."
Jol ruled out the possibility of playing all three deadline-day signings in Sunday's Premier League clash against Blackburn, although admitted Ruiz could start at Craven Cottage.
"We will wait and see whether he will play this weekend because there are always different things [to consider]," he said.
"Sometimes you have to throw a player in at the deep end but sometimes it might be good to look at the first XI, look at the style and what we do and get to know the players.
"But I think Bryan is one of them that could start."
Despite declaring himself pleased with his squad, Jol was frustrated to miss out on France international Gignac.
The 25-year-old was at the club's Motspur Park training ground on deadline day and ready to join the Cottagers on loan until parent club Marseille pulled out at the last minute.
Jol refused to rule out another move for Gignac when the transfer window reopens in January and was relieved to be able to bring in Portuguese attacker Sa.
"It is always good to have a good look at the players again," he said of Gignac.
"As you know, the transfer window is a madhouse in England and we had a very good relationship with the player, Gignac.
"He wanted to stay and didn't want to go back, but he had to so that was the only thing that was a bit annoying, you know?
"First they said you can get him on loan and then they said, 'No, we don't have another player for him,' so they called him back. That was pretty annoying."
"Because Bobby [Zamora] was injured I thought we needed somebody for him and Orlando was there and it proved to be a good plan B."