In reply to:
He is based in Seattle and would like to do it somewhere else.
Not really my business, but: why go somewhere else? Seattle is the best place to get instrument training.
I got my IFR there in 1999. By the time I finished the training, I had more than 20 hours of “actual” instrument time. That was an invaluable advantage in confidence – and, more important, I believe in skill – when it comes to using an instrument rating in the real world. It’s one thing to fly an ILS down to theoretical minimums with the hood on. It’s something very different to fly in the clouds, with an instructor, until you’re 200 or 300 feet above the runway and then look out and see it there.
In much of the rest of the country, it’s not that easy to get a large amount of safe “actual” IMC time. In the midwest and on the east coast, “actual” time in the summer often involves thunderstorms, and actual time in the winter often involves icing. On the west coast, there’s not that much actual time to be had, except (a) marine-layer fog along the Calif coast, or (b) smog/haze in the LA Basin.
In Seattle, the typical weather is “safe” IMC – a low but non-turbulent cloud layer. In the winter icing can be a factor, but if you stay on the low, western side of the Cascades the clouds are usually low enhough to let you go “actual” without getting iced. There are airports all over the place – plus Boeing Field, the biggest and most convenient GA airport in any big city. For normal living conditions, Seattle’s weather is a bug rather than a feature – but for IFR training it’s ideal. Why go anywhere else?