First wash done after my first BKT (Marcia Tex), which was applied by the stylist that Ediese found out about (info is somewhere upthread). He is very professional, punctual and his price is SO reasonable for what you get. I highly recommend him.
Pros:
New growth is very manageable, dries faster, less product use, feels stronger (overall), time spent on wash day will drastically decrease
Cons:
Some of my previously relaxed hair (ends) are breaking and although it's not drastic, I don't like it because I'm not used to seeing any.
Experience:
The stylist used the Softliss 4-day formula. My stylist has been using Design Essentials mild on my hair, relaxing it to near bone straight texture. At the time I got my BKT I was approximately 5 weeks post relaxer, with maybe 3/4 inch of new growth.
When I got in his chair he examined my hair (which was in a combed out braidout, which in retrospect I think might have caused him to believe that my BKT needed to be flatironed with a higher heat). He tested the elasticity of my hair by pulling a handfull (kind of like an extreme weave check, lol!), after which he declared that my hair was in good condition and very strong. So, then we talked about heat. I told him that I did NOT flatironing at 450 deg and he was okay with it, although he did say that if I insisted on a heat that was too low and it didn't last at long, it would be too late to do anything about it. We went back and forth and finally decided to give it a go at 400 deg.
He did the BKT per the normal procedures that you've read here and everywhere else. He blowdried my hair on low setting (using 2 blowdryers) and a comb. He said that a lot of people think AA hair needs a lot of heat because it's tough, when our hair in fact is more fragile. He dried only to 75% and then did the BKT application. He paid more attention to the new growth and did fewer passes on the relaxed hair, which I liked. There was minimal fumes and the whole process took a little over 2 hours. He gave me some Marcia Tex shampoo and conditioner and sent me on my way.
The whole not getting my hair wet/using pins/ponytail thing was a PITA. I also did NOT enjoy the bone straightness of it all, because I never wear my hair flatironed like that. Finally, I got through the week and washed. I used the Marcia shampoo/conditioner and my hair didn't feel soft/conditioned enough for me. I slapped on some Joico Intense Hydration condish and ended up falling asleep with it in. This morning, I rinsed that out and I STILL didn't like the feeling, although detangling was great and I lost very little hair. So, I put on some of my deep condish mix that I use with my steamer (I took my almost empty tub of Motions Silk protein a variety of almost used up conditioners in, added olive oil, & JBCO) and did a steaming session. Oh my goodness! My hair is just unbelievable. I currently have it in a ponytail roller set. Once it's dry, I'll take some pics and post them.
Now that I've had someone else do it to get an idea of how it's done, I will probably do it myself from now on, so that I have more control over the heat. My hair has always been pretty direct heat adverse, which was probably my biggest reservation about this process coming in. However, I have to say that so far it's been a pretty good experience and I can definitely see using this to transition. My new growth is just amazing ... not too straight, but manageable and soft, soft, soft!
sounds like the lady was doing some customer fishing. Honestly I wouldn't worry about it. BKT will only permanently get hair so straight if it was processed before. The real benefit is the ease of combing and managing the hair. If you want bone straight hair, this is not for you unless you have previously had some sort of chemical process.
Yay!!! Can't wait to get home to watch! 
