I saw Dr L for just over a year.
He is the only doctor at his clinic.
Dr L has a very specific profile of patient that he treats...namely those with chronic viral infections as he has found great success treating these patients with a variety of antivirals.
If you fit his treatment profile, you will likely be started on one of these antiviral protocols but you will first need to be seen for a 2-3 day period at his office for a variety of extensive testing (heart ultrasound, holter monitor overnight, and bloodwork). Then you will need to return to his office every 4-5 weeks for further monitoring and bloodwork. It's very time intensive in terms of travel if you live far away.
Dr L also is quite old school in many ways. While he is caring and sympathetic to the physical causes of ME/CFS, it is very much an "ask no questions and do things my way" type of practice.
He also does not use any supplements that many of us have found quite helpful and does not entertain any questions on his medication decisions or allow for any input into those decisions in my experience.
He does acknowledge the problem of bacterial infections like Lyme and co, but does not use the best testing to detect these infections. I had two positive tests (from IgeneX and Neuroscience) that he wouldn't even look at and simply said that the inferior Labcorp testing he uses proved I no longer had Lyme and should discontinue antibiotics. This was not a wise move for me in hindsight.
I do not regret seeing Dr L and I am grateful to him for his countless years of research and work treating our population. However, it was not a good fit for me overall and I have since moved on. However, if you fit his profile and are willing to work within his constraints, I would give it a shot.