I put my TamaGo up. The urge to run one vanished as quickly as it came. It's size made handling it and playing games uncomfortable. It's a shame too because the shoot the bug game is my favorite Tama Game ever. But spending a lot of time playing with the TamaGo hurt my hands.
I'm raising a V1 and V3 now. I love these guys. The early Connections were a success for a reason. They're a lot of fun. But there's one aspect I don't like. Discipline. I dislike having to punish my Tamas for calling out to me. It seems cruel. I have no problem praising them to cheer them up. I think that's a neat feature. I just wish you didn't have to scold them for wanting your attention. It would be like my dog coming up to me to be petted only for me to smack her. You don't punish a pet for wanting you to spend time with them. The very idea hurts my heart. I much prefer the way the V5 handled it. They called for training and you gave it. No punishment involved. And if you don't discipline the V1 and V3 they grow into unhealthy characters. So it's like saying "I'm beating you but it's for your own good"
My Tamas take it in stride. They're healthy and happy. But having to punish them is a feature I'm glad they took out in later versions.