Samsung Galaxy S 4 (GSM)

Hopefully the S4 gets better reception than the S3! I went through three S3's and finally had to get the Motorola Electrify M....which i DO NOT like! I do live in somewhat rural midwest (US Cellular customer). I was told that the phones with a -B on the back behind the battery were the latest and should not have a problem. That is NOT the case. Samsung knows about the reception issue and apparently has made a few changes.

Can anyone out there validate that Samsung has done something about the internal antenna on the S4 to improve reception? It needs a stronger internal antenna!