I honestly have never heard of her, and when I googled her most of the links were for a porn star, lol.
However I did sift through my google results to actually find her website, and I checked up on her USEA recent competition results (a must, imho, when looking for an eventing trainer because you do want someone who is actively competing...usually. There are always exceptions). I think she's definitely a well qualified individual. Recently it doesn't look like she's competed over preliminary but her full competition history shows that she's competed at multiple advanced level competitions, as well as riding at the Olympic team selection trials in 1996, which is quite impressive as well. She's trained with some big names, like Mark Phillips and Jack Le Goff, as well as competing extensively in hunter/jumper shows (up to level 7, according to her site) as well as competing through 4th level dressage.
I would definitely consider her as a possible trainer for you, but the best advice I can give is for you to take one or two lessons from her before making your decision. There are a lot of fabulous riders out there that also coach students, but you won't necessarily get along with all of them and their teaching methods might not work for you. Always give them a bit of a trial run. Maybe schedule one dressage lesson and one jumping lesson with her, so you get a feel for how she teaches both.
"Always be yourself. Unless you can be a unicorn. Then, always be a unicorn."