"pretty much enjoyed" is correct and usable in written English.
It is typically used to express that at a certain level one experienced enjoyment. For example: "I pretty much enjoyed the party last night".
Unlike my dad, I pretty much enjoyed my entire 16 years in school, and work as a writer.
I pretty much enjoyed everything.
Engaged in the above, but pretty much enjoyed the living hell out of it.
Kilikiti is a Tuvaluan version of cricket which can be pretty much enjoyed by all villagers from children to adults.
"I pretty much enjoy the competition to see what I get, to see if I improve," he said.
As expected, when it came to D.I., pretty much no one enjoyed receiving less than the co-inventor, business partner, or manager.
(The next day, Merle told Bobby Wayne, his rhythm guitarist, that he felt the Hampton show had been a success: "I pretty much thought they enjoyed us, but I knew it for sure when they started throwin' their newborn babies at us. That generally is a good sign").
It appears pretty much everyone is enjoying the World Cup, with the possible exceptions of Fabio Capello and Luis Suárez's agent, though on the ground in Brazil it is evident that supporters of the USA and Mexico are enjoying it more than most.
In the case of DirecTV and Viacom, however, the carriage dispute has a lot more collateral damage, as it affects pretty much anyone who enjoys watching select MTV and Comedy Central shows online.
Fortunately, Page and Levinson aren't the first ones to attempt longevity: Immortality has long been the ambition of kings, super villains and pretty much anyone who enjoys waking up each morning.
