Hi! I'm Into looking for a new amp that gives the nice John Mayer tone of a Two-Rock Sig without paying 50,000$. Is the Ceriatone OTS a good way to go or any other suggestions?

/thank you, Erik!

 I agree 100% get a bluesmaster 100w, the lows are like floating on a football field of marshmallows

100 watt gives very little extra volume, but you get a bigger tone, even at lower volumes.

 

and the extra weight 

All guys are correct here!
Bigger output transformer = bigger tone, more HEADROOM for the clean tone and smoother drive.
Not much difference in weight.

Okey thank you all!

Any mods that i'll have to do to get it closer to the 2rock CRS tone or is it very close stock?

I have a OTS 50-Watt that I bought used, so I don't know what mods were done on amp if any.  I've found with my amp, that the clean channel is good, not great, but OD channel is were the amp comes alive -has JM "Slow Dancing" to Trio Blues tone written all over it.  I can clean up the OD with volume control on guitar and turn it up to get his blues tone - very, very transparent tone.  So much so, that lately, I''ve been playing with no pedals up front, just Dr Scientist Reverbertor and Trex Replica in loop with Kleinulator - also helps minimize tone suck.   I play through two seperate 1x12 cabs.  One loaded with EVM12L and the other cab is a TR Sig Cab with TR1265R speaker. 

Not sure this helps, but I would agree on 100-watt not being much louder, just more headroom....a positive.

Good Luck!!

And a special tip from me: Get some Klein Jazzy Cat Strat pickups