I just reread the Oblit section in the new Codex.
For a 5pt increase
Oblits have been downgraded..
..from Str5 to Str4
..from T5 to T4
..from a basic save of 2+ to 3+
The body weapons are more of a give and take..Add
Plasma Cannon, MultiMelta, Flamer now LinkedDrop
Autocannon, Hvy Bolter, Missile Launcher (Frag)
Finally, the big blow IMHO is the move from Elite to Heavy slot.
Still worth it?
I say no..