Well, I finally made the time to put everythign together and so have booked my Paris apartment but it turned out not to be either of the two I'd sought opinions on earlier.

Partly to due my delay, the Marceau locations sold out for my dates while I opted to stay more central than Montmarte so shose a small one bedroom through clickappart on Rue du Gros Caillou as it seemed to be on a very quiet sidestreet, had a separate bedroom and was not in a touristy area but with good dining and attraction options very close by including 150m to Rue Cler and Eiffel Tower.

The pricing around EUR 100 was a little under what some 2-star central hotels wanted and I liked the clickappart terms & conditions and options for easy payment not to mention the numerous questions answered promptly via email.

I hope all goes well and I enjoy the neighborhood. Thansk again to those who helped with input.