It looks like it'll be watchable enough and not as slavish-to-the-original as the Total Recall remake (and that cast is probably worth a rental at least. But I'm not sure it adds an awful lot to the original, beyond the fact that Murphy is now aware of his status.
Looks worth keeping an open mind for it. I'll wait and see what reviews and word of mouth are.
Yeah the fact it doesn't star Colin Farrell and isn't directed by Len Wiseman already puts it miles ahead of that remake.