You're right. Even though the signal shows only one bar, the connection is stronger than that. But it still seems like it doesn't connect as easily to signals that I've been able to connect to with my Hisense tablet. I still love the tablet! Very fast, sleek, and no issues with it.
On another note, hopefully we can get some custom ROMs soon. There is already root access but no one has developed any ROMs yet. The forum at XDA seems to be our best bet for when they become available.
And I'm going shopping today for a 32GB card. I installed an 8GB and it's almost full already, but the internal memory on the tablet itself still has plenty of room, which is fine by me. I'd rather have more room on the tablet.