Interesting question, I can only imagine that Heaven is filled with the most pure joy of being united with God. This joy is not a fleeting pleasure, but eternal. I do not know if there will be special moments of more intense joy, we can only wonder.
(1 Corinthians 2:9) says “ However, as it is written: “What no eye has seen, what no ear has heard, and what no human mind has conceived” – the things God has prepared for those who love him–”
Saint Faustina describes her vision of Heaven like so: “I saw how all creatures give ceaseless praise and glory to God. I saw how great is the happiness in God, which spreads to all creatures, making them happy; and all the glory and praise which springs from this happiness returns to its source; and they enter into the depths of God, contemplating the inner life of God (…). This source of happiness is unchanging in its essence, but it is always new, gushing forth happiness for all creatures” (Diary, 777).
Hell is described as “eternal punishment” (Matthew 25:46) “everlasting destruction…shut out from the presence of the Lord” (2 Thessalonians 1:9) “blazing furnace where there will be weeping and gnashing of teeth” (Matthew 13:50) “where the fire never goes out” (Mark 9:43) “lake of fire” (Revelation 20:14) “fiery lake of burning sulfur” (Revelation 21:8) and we should be afraid not of people, who can not harm the soul, but of God, who can “destroy both body and soul in Hell” (Matthew 10:28)
I am not sure which of these describe the current Hell, and which describe the eternal Hell to come after Satan and the doomed are judged at the Second Coming. Regardless, I do not see how one in Hell could have any type of pleasure. On earth, we are not perfectly communed with God as in Heaven, and we are not subjected to His pure wrath as in Hell. So earth has a mix of pleasures and sufferings. In Heaven and Hell, there is an eternal state of either pure bliss or the full consequence of the wrath of God being poured out. I don’t know if our state will vary from time to time, but regardless, in Heaven one will always be satisfied and in Hell one will always suffer.