Great experience all round!
Used Prime Test Lab to handle Google Play's 14-day closed testing requirement for my app, Coral Companion, and it was a genuinely smooth experience. Setup took no time at all — they had clear, step-by-step instructions and the right tools laid out so I never had to guess what to do next. As a solo developer without a QA team, that structure made an otherwise tedious requirement completely painless. Would recommend to anyone needing to knock out Google Play's testing period quickly and without headaches.