I've found HondaLink OK, if somewhat slow. My iPhone app just updated recently and it is better. When at home, getting ready to go somewhere out of town, I like being able to search for the place, then send it to car. Unfortunately, it takes a while to get to the vehicle. With my wife's AcuraLink on her RDX, you find the location, send to car, then about 10 seconds after you start the vehicle (including system initial boot), the location pops up on the screen and asks if you want to set this as your location in the NAV. You click OK and you are done. On the RL, it is sometimes 5-10 minutes or so, then the system chimes at you, allowing you to swipe the icon down and get the location. Still works; however, by that time you are on the road...it does, however, allow you to touch the location and set it, even while driving.
If it was as quick at the Acura system, I'd like it better. The update just done in November, however, did seem to speed it up from when I first bought the truck and downloaded the app (it always does work now, which wasn't the case before). Hopefully, they will continue to work on it. In the Acura app, you get notified of TSB's, recalls, etc; however, I haven't had one show up, yet (thankfully). Honda app doesn't do that, yet....so obviously a work in progress.