Unhappy [Q] Confused about bands in the DR - will this work on 3G or only EDGE on Claro ?

Will this phone work with 3G speeds or only EDGE? Amazon Link.

From what I can gather, Claro frequencies are as follows:
CDMA 1xEV-DO in 800/1900 MHz
GSM/GPRS/EDGE in 850/1900 MHz
UMTS/HSDPA service in the 850 MHz band

This phone shows:
Network Frequency
- 2G: GSM 850/900/1800/1900Mhz
- 3G: WCDMA 850/2100Mhz

It doesn't show anything for UMTS, which a friend is insisting is needed for anything better than EDGE speeds.
Is this true? I am buying as a gift and the current phone the guy is using is capable of 3G speeds there. I wouldn't want to give him something slower, as he uses Whatsapp and stuff like that a lot.

Thanks for any help, I searched for about an hour before I gave up and decided to ask.
If it ain't broke, fix it.