I started a 13 week plan for the ING Luxemburg Half Marathon in may with the coach Greg training program.
Tge training program was very good organized and easy to adapt, especially if you want a week off in early program (vacation) the plan easily adapts. Then suddenly around early march after a Garmin update, the watch started to have issues connecting with my phone. It surely became very annoying, forcing me to restart the phone everytime. The watch also took some time to get a gps signal after that update (also when I did no training session after 2 days).
The most frustrating issue though were interval runs, its almost impossible with the watch to keep a steady signal and show the correct pace. Even though I run in a pretty flat area, so forest or tall buildings. It always jumps from too slow to too fast in a matter of seconds, even though maintaining constant speed.
Is there any settings to mitigate this issue? Please let me know.
Another issue was, that the program does not measure elevation/ascends/descends where tge speed varies. So if you go slower on a steep slopem it just says you are not fast enough on flat terrain. Though the race I was training for has some height variation
Anyways, the trainibg program was set to 1:40:00 for 21km at first. I did go running regularly before, 2 times every week. After 6 weeks the program showed me a purple confidence level so I set my goal to 1:38:00
At the end I got 1:39:29 so not entirely 1:38:00 but I've beaten the 1:40:00.
My verdict is: great training program, almost reached my goal, I could have done better early in the race (people blocking the way).
I wish though there were also more programs like for mtb, mountaineering.