Did months of research between the ProTee VX and VTrack since they're both overhead systems with dual high-speed cameras and AI tracking. The ProTee VX (Dutch company, been around since 2000) has a solid reputation and their ProTee Labs software is impressive. What tipped me toward VTrack: the reading area is noticeably larger (24x30" vs ProTee's 25x21"), and at under $5K, the VTrack came in about $1,500 cheaper than the ProTee. Both have no subscription fees, which was non-negotiable for me. Three months in with mine, the club data (face angle, path, attack angle) matches what I was seeing on my friend's GC3. Both are excellent overhead options - I just got more hitting zone and saved money with the VTrack.