Richard knows what he is doing. My LS430 started jerking downshifting into first gear and the dealer and local stores wanted an arm and leg citing faulty transmission. I came across Technicaldomain.com in a reditt group and tried to take a chance with a ECU fix . Richard promptly returned my call and discussed what he would do to fix the issue . He is extremely knowledgeable and knew exactly what he had to do to fix the issue. The detailed explanation he sent about extracting the ecu from the engine bay is very useful. The shipping to Puerto Rico is essentially the time that needs to be considered . Richard did the repair work the same day he received the package and even checked the software calibration was the latest provided by lexus. He proactively went ahead and replaced a capacitor that was ok on my ECU but as per experience tends to fail with time .Upon installation the car shifts butter smooth. The entire experience , communication and status provided was a very smooth process. I am extremely satisfied with my decision to use services provided would strongly recommend Richard to anyone who needs fixing of their ECU . Thank You Richard ... Sumit Misra (Charlotte, NC)