I would definitely recommend trying this product. It's a really reliable and high-performance machine. In terms of a learning curve on the equipment, I had some training on the VNA before we purchased it, so for me training was done within a week or so. It was not really hard. But for colleagues, it took them some time to learn it. Upgrades are always welcome. Apart from VNA, we need to purchase all the fixtures, other equipment to connect to VNA. They are very expensive tools, and that's part of upgrading what we are doing in the lab. The solution, performance-wise is a ten out of ten. Price-wise, it's a six out of ten.