Well, what a fantastic few days. Weather beautiful - sunny, bright blue skies and cool. We, serendipitously, actually walked past both Re Plas and Los Caracoles. We had lunch at Re Plas - it's quite small, beautiful tiles on the floor and a nice mix of bar tables and dining tables, staff (all women when we were there) were lovely - taking the time to explain the menu properly, and we had a fantastic meal - some tapas to start, then a rabbit paella (sorry Lapin ).
we had tapas at Los Caracoles mid afternoon - on a different day I hasten to add - Iberican ham and razor clams which I've never had before, and a few beers - delicious.
Loved Barcelona - only downside was DH having his pocket picked (but they only got the decoy wallet with a few euros and no c/cards) on a late evening in the Barri Gothic - we even knew what the guy was up to, but hey, he could have had a knife, so DH just let him get on with it.
Highlight of the touristy stuff was Montserrat and Parc Guell. If you go to Montserrat make sure you're there for the service at 1pm to hear the choir, and go up the Saint Joan funicular - the views from the top are heart singingly beautiful. Parc Guell was well worth the slog up hill - very interesting if you like moderniste architecture, and weird but quite lovely.
We actually found a really nice bar/restaurant close to the apartment where we were staying - La Llimone on Cr Nicaragua. This was a true local bar (Cr Nicaragua is residential/business district). We had dinner there on 2 nights and they have a great tapas menu - very busy, full of locals and very friendly people, would highly recommend.