I'm enjoying the few minutes a day I spend on Miitomo, but I do wish they had a better way of adding friends online besides syncing Facebook and Twitter accounts. You can't get a friend code or a scan a QR image to add friends at all.
(And still no-one from my Twitter feed has signed up on Miitomo).
I'm liking Miitomo. I don't have any friends yet on it (no one on my twitter steam is using Miitomo at least). And it doesn't import your 3DS friends from the console or miiverse.
It's definitely built using the Tamadochi Life engine (one if my favourite "games" on the 3DS). It's managed to capture the charm and silliness of TL, which was always more fun with other people playing. Already eyeing up a "gothic lolita" costume for my Mii.
I know I haven't posted in an while, but what is up with my lack of new lines. I cannot make a post or comment containing a newline or return in it - they get stripped out. I don't know if it's G+ or Chrome but it's bloom'in weird. It's enough to make me go back to lurker mode.