i use btr2000, and yeah, its slower than my korg dt3 handheld tuner, and the tuners in both my yamaha magicstomp and tascam mp3 trainer (i never realised how mant tuners I had before ), but it does the job, albeit at a more sedate pace. Basically, you get what you pay for.
I don't know, youngsters these days want everything yesterday, mutter, mutter mutter............