I have a TC Polytune that I feel confident in. It tracks fast, holds onto the note well and is easy to see. The only issues I've run into was that it doesn't track well when the band is already playing. I've almost gone back to a TU-2 for the emergency mute-and-tune-midsong moments, but so far the convenience of the TC has been winning.
I have a Planet Waves NS Micro Tuner that I don't feel confident in. I bought it because I wanted something smaller that I could leave clipped to my headstock, but it tracks a lot slower and has a hard time holding onto the E string. I've relegated it to being a guitar tuner where it works marginally better, but so far it's not inspiring a lot of confidence there either.
I'm a rock band, so I have no idea how a clip on will track in an orchestra pit, but if I was playing a gig where I needed 100% confidence in my ability to tune at any time I'd use a pedal tuner.
I have a Planet Waves NS Micro Tuner that I don't feel confident in. I bought it because I wanted something smaller that I could leave clipped to my headstock, but it tracks a lot slower and has a hard time holding onto the E string. I've relegated it to being a guitar tuner where it works marginally better, but so far it's not inspiring a lot of confidence there either.
I'm a rock band, so I have no idea how a clip on will track in an orchestra pit, but if I was playing a gig where I needed 100% confidence in my ability to tune at any time I'd use a pedal tuner.