It isn’t Harry Potter by any stretch of the imagination. And it isn’t perfect. But it is very readable and with the exception of the over-the-top dwarf character (Mulch Diggums) it is constructed well enough that the story is fun and surprising.

I’ve read through the third book now and have ordered the fourth. They are not great works of art, but certainly readable and worth buying.
Three Men and Trolley

Pros
1. Much improved reception of GPS signals
2. Improved hardware integrity or sturdiness
3. Ease of transferring data to the computer and a
great software of mapping and analyzing the run data.
Cons
1. Not comfortable to wear this for a long run.
There is a sharp edge at the bottom corner which
rubs against my wrist and it gets pretty painful
after about 10 miles of run. I have to put a
bandage to reduce the problem.
2. Distance reading is consistently shorter by about
1% both with 101 and 305. It was annoying at the
beginning but I don’t think it is a big problem now.
I just remember I have to run 26.5 mile on my Garmin
for a full marathon.
Net
I recommend it(5 stars)for $150 with one waring;
This is an electronic gadget controlled by software
codes and you expect software glitches soon or later
just like with your PC. I had a few problems both with
101 and 305 (not turning on and a frozen display) but
the problems were fixed by resetting the software(and
perhaps reloading a software). You may have to contact
Garmin for the instructions of how to reset. Their
support by e-mail (used to be by phone) is not
that bad (you’ll get the solution), but it is
definitely slower than by phone. Garmin has some room
to improve.

Guzzini Massoni Trolley Grey