I am very sorry to hear of your problems. I will say that I haven't experienced any problems with my TA-30 112 combo amp whatsoever. Additionally, I don't consider the "noise issue" that several complain about to be a problem for my needs with this amp. Honestly, I feel the noise levels of this amp are quite low compared to the vintage amps that Mesa is mimicing in this series, but that is just my opinion.
I agree, the "Top Boost" mode offered in the TA amp is second to none for that vintage Vox sound in a modern production amp. I also love the vintage sounds offered in the other modes of both channels of my TA30 amp (Especially....the Normal, Top Boost, Tweed and H1 Modes), but there again, I haven't experienced the issues you are describing at all.
I do hope that the amp that you recently purchased works well for your needs!