My son and I love how this extends our this app building play. We have both the freight and passenger locomotives and enjoy running both of them together at the same time (using separate phones and apps). We have purchased the additional track sets, as well, and have created very elaborate track layouts.
I only have a couple points that would be great to be fixed for LEGO :
First, as other reviewers have mentioned, the train controls in LEGO are close to the screen’s edge making it too easy to accidentally swipe and access iOS screens like “Notification Center”. And when you do, it often disrupts the Bluetooth connection — sometimes requiring turning the train off and on again to reconnect. This can be rather frustrating for me, let alone a 3-year-old. A work around to this problem is to turn on the phone’s “Guided Access” to limit any out-of-App functionality.
Second, the train whistle or refilling water sounds used to come directly from the locomotives. Now the only sounds come from LEGO or are absent altogether. This is disappointing since the control of the actual train whistle and external sounds was a fun part of the overall experience. I hope it’s just a glitch in the latest app update and will be fixed soon.
Overall, LEGO and the trains have provided so many hours of fun for my 3 year-old and myself. Thank you!