TRL equipment has received a lot of good reviews, but I'm skeptical of them and their products.
I spoke with Paul a while back about modifying a Slim Devices Transporter, and he said (paraphrasing) that it wasn't a suitable audiophile product, that it can't be made to perform well enough for use in a high-end system.
Since I own a modified Transporter, and since I've heard how good the ModWright Transporter sounds, suffice it to say I strongly disagree with Paul's assessment. Other professional modification specialists (Dan Wright and Alex Peychev) seem wholly impressed with the Transporter's performance and capabilities, and since my experience mirrors theirs, I find Paul's comments curious at best.
JMHO...