Pros
There are a lot of things that Keyence does right, and if you like a structured work environment, you'll do well here. They have excellent products and spend a ton of money on R&D, always coming out with industry-leading technologies. It makes it very easy to sell when you have great products. Additionally, Keyence has a lot of excellent internal systems. Shipping and repair are well run and customer service and credit are excellent. Training is excellent, and salespeople have an extremely large safety net for the first few years, meaning you have to really screw up to get fired. Even if you can't sell, they'll keep you around and keep trying to train you as long as you're working hard. Pay is good - 75th percentile of technical sales jobs.
Cons
Sales-related activities are all tracked and measured, and the expectations for activity are very high. These do not diminish as experience is gained, leading to burnout after a few years. Most salespeople stay 2-3 years because once they learn how to sell, other companies offer them a better lifestyle, even if it's similar pay, and people leave. For years, it seemed like employees were regarded as cogs in a wheel, and even if that has improved over the years in most ways, the fact that management won't adjust their incentive systems to recognize that not all employees sell in the same way and that sales calls are still a major part of compensation is damaging.