The ejector that come with the iphone is trash.
The old
Liquidmetal ones were pretty nice. I think they stopped shipping those sometime during the 3GS era though, and changed over to the basically a paperclip ones.
LTE, at least here on the west coast, is never what I would call fast, and certainly not anywhere near as fast as wifi, on my iphone 5.
Just need to be at the right part of the west coast

T-Mobile LTE in Seattle frequently hits 35-40mbit easily. I did find Verizon LTE to be quite fast too on my trip last year, but this was usually in less populated areas. Don't really remember how fast it was in the larger east coast cities.