Strengths: Very soft material. Doesn't look like a bra.
Weaknesses: Little support from the side.
Overall: I bought one as an alternative to my M&S sports bras. Very comfy, but seems to spread my chest out to the sides (and I'm not particularly big)! Not really a problem if I'm wearing a baggy top.
Weaknesses: No PC interface. Quite large. Sometimes crashes.
Overall: I bought a used 101 on ebay for £45 - what a bargain! Looked like it had only been used once. It's great for me to see how I'm improving, and now I don't have to take the car round my routes to see how far I've gone!
Overall: Upgraded from the 2100's I'd had for years, but hadn't done much running in. I tried on a couple of other pairs, but these felt right straight away. The guy in the running shop said "You're right, your feet do suit Asics"! 3 months later, and I'm on track for my first 10K with no blisters, and even my dodgy knees are behaving themselves.