Default [Q] Will Korea bought S5 work in Canada?

I bought the S5 a few days ago.

The model is SM - G900L, it is with the korean carrier LGU+.

I'll be going back to Canada in 3month and was wondering if this will work with telus in an easy sim swap.

Are there going to be any problems with the LTE, LTE-A, LTE call feature etc?

I tried the telus sim here in korea and roaming seems to work but i dont know if canada uses same channels as korea.

Also, would it be ok to install (if there is such a thing) the telus carrier rom or the generic NA rom without problem?

Additional info:

Baseband version: G900LKLU1AND2
Kernel Version: 3.4.0-1273833, dpi@swdd5717 #1
Build number: KOT49H.G900LKLU1AND3

thanks in advanced.