Telestial Kingdom
There are multiple views of the Telestial Kingdom held by Mormons, usually held simultaneously. The one says that "The glory of the telestial...surpasses all understanding." (D&C 76:89) People who go to this kingdom will be happy, even without Jesus there, who never even visits. They will be ignorantly blissful and oblivious to what they could have attained in the other two kingdoms, including the fellowship of Christ and their families.
A second often simultaneously held view is that those who go to the Telestial Kingdom will pine and suffer and weep with unrequited desire and regret, because they are keenly aware of what they could have attained, and their desire for fellowship with their family and full Godhead is unmet.
A third view is that those in the Telestial Kingdom will know what they are missing out on, but will be undesirious and callous about it, thus not suffering with unrequited desire.
A common Mormon saying about placement into the kingdoms is that "God will put people where they are most comfortable."
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[edit] Criticism
Heaven would not be heaven if it lacked Jesus.
A heaven with suffering and pining and unrequited desire is no heaven at tall.
It goes against a very clear Biblical view of what hell is like: eternal punishment with weeping and gnashing of teeth. The strong visuals like a lake of fire were used for a reason: the reality of hell's physical pain is so horrible that it needs an intense metaphor.
