You should check out Remote Central which has reviews of this remote and many others. I have no experience with the Pronto however I think the lack of physical buttons makes its use a little more difficult. With physical buttons you learn which buttons to press by the feel without even looking at the remote. With a touch screen I would think you would almost always need to look at the screen. I just bought a Harmony SST-659 which I really like. You can check out my review in the signature below. It cost only $130 from several online stores so you can buy a few DVD's with the extra cash. Of course the MX500 also has buttons so perhaps you would like that one as well.

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Desperado - 1050 Owner - Reviews - Harmony SST-659 Remote