Don't see a point in buying it if it doesn't cause tbh, BL2 has enough quests to get me to the end without levelling.....if the DLC is going to be too easy, or if it's going to over level me and make the rest of the game easy, then it doesn't appeal to me tbh.
Also is there any point in the increased level cap if I've no interest in Ultimate Vault Hunter Mode? I'm guessing not. --- Currently Playing: Final Fantasy XIII, Borderlands 2
The dlc in playthru 1 will scale to your level upon starting it. It caps at level 30, just like the main storyline in playthru 1. If you do the dlc it will over-level you for the main game, unless you bypass side missions in main game.
If you're not doing UVHM, don't bother with the level cap increase. TVHM caps at level 50. --- Would you like to do battle with a Brony riding piggyback on a Rabid Stalker? If the answer is no, you are sad, and I've no desire to speak with you further.