Primarily use it for MTB riding. GPS tracking, heartrate and speed is accurate and informative -- distance, elevation gain, etc. It's fun (although usefulness is a question) to see jumping stats. Flow and Grit numbers are marginally useful if you ride the same trails over and over, but who cares? Will probably download a training program when the snow falls and I move to an indoor trainer.
So far i have been quite happy with this bundled purchase. The HR monitor and belt work great and I love having the constant display. The out front unit holder works great and it works nicely with the Varia front light that I recently purchased. I gave 4 stars because i believe the garmin unit itself should be larger.
No wires, no remote sensors with dead batteries, easy menu system, automatically synchs to my profile, and is a display for the awesome Garmin Varia radar tail light. I have always opted for simple computers, not big into tracking my numbers. Just make it simple. The EDGE 130 gives me simple, plus my basic stats are there automatically if I want to look them up, including elevation gain. Best computer (and tail light) I've had out of the last 5 or so. I wear the HR monitor about once a month to be sure I'm not dead (so far, so good). The 130 doesn't seem to mind.