opinions on 4L80E converted 6speed automatics

[ULTM8Z]

I've been contemplating a 6-speed automatic for quite some time now. But with the failure of my TH700R4 last week, I've been thrust into the position of having to make a decision now...

Wanted to get opinions on these 4L80E-based 6-speed automatics... (i.e., like TCI 6X).

So far the ones I know about are TCI and PATC. I like having the automatic (as opposed to swapping over to manual 6 speed), but the idea of having the 6 speeds available is very appealing.

I've been reading up online and many of the threads/posts are several years old, and they're a mixed bag of praise and complaints... everything from no problems whatsoever, to having to take the tranny out a few times and sending back to the manufacturer for a refund).

Wanted to see if there have been any more recent experiences with these and whether I should make the attempt.

Thanks.