I am considering getting a Sony Z5 Premium from Expansys.

It supports the following bands:
UMTS HSPA+ 850 (Band V), 900 (Band VIII), 1900 (Band II), AWS-1(Band IV), 2100 (Band I) MHz
GSM GPRS/EDGE 850, 900, 1800, 1900 MHz
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 38, 39, 40, 41)

How well will this work on Vodafone?  it doesn't look like it will support all the vodafone bands so I am concerned that I might not be able as good a connection as I could with a different phone.

Currently I have a Nokia 1520, so it will probably be an improvement on that.

Ta