This review proves that great looks don't always go along with equally great performance, at least in this case. To tell you the truth, taking into account Thermaltake's experience in PSUs and especially the high price of the TPG-1200M I expected more, much more. Although voltage regulation at +12V was below 3% it is still far behind the competition (for example an Antec HCP-1200 we tested had 2.19% deviation on the same rail and on top of that costs less). For a high-end PSU ripple near 90 mV at +12V and close to 40 mV at 5V is simply unacceptable. Unfortunately the high overall efficiency and the fact that the PSU delivered its full power at 50°C can not save the day. The eight PCIe connectors and the succesful pass of all Advanced Transient Response Tests can't help much either. If the PSU's price was much lower, close to $200, then its results would stand in a different light, but with a price tag of $300 (at Tigerdirect. Newegg lists it for $20 more) I simply cannot overlook the above since the TPG-1200M plays in the same price category of other competing products that use a far more sophisticated and modern electrical design.
In my opinion Thermaltake should consider another OEM for their high-end units, especially since they already have a very good co-operation with Channel Well Technology (CWT).

Due to its high price and mediocre performance I simply cannot recommend TPG-1200M as a good buy. If the manufacturer fixes the loose voltage regulation, especially on the minor rails, gets rid of the increased ripple/noise, makes the fan less audible and offers it at a much lower price then the Thermaltake TPG-1200M would certainly end up being competitive.