Hi Garry
Now that's REALLY interesting as after Pandora went bust Sema Apts seemed to disappear off the planet - we tried to book them last year to no avail but handy to know who may be able to assist in future. For all they are only 1 Key I'd have absolutely no qualms about staying there again.
You have done fantastically well getting a ground floor apartment - those sun terraces are to die for

- we'd have loved one but ended up on the first floor. You get sun on the front of the apartments from early afternoon onwards.
The apartments are really spacious - bedrooms to front and rear with good sized bathroom in between - living area is a good size as is kitchen - we really liked the fact that there was an area to the end of the kitchen blocked off by a door and there was a big sink in there (ideal for washing your smalls) and it was a great place to store inflatables (looks out onto the Levante Park). The kitchen is separated from the living area by a door which again, is great if you don't like open plan.
Furniture is a little dated (all pine) but for us with kids it was ideal as I wasn't on edge the whole time if the kids touched anything.
All apartments have TV with satellite tho' I think the only channel that we found that spoke English was Sky News which did us okay.
As you know it's on a busy road with Los Pajeros restaurant across the road (and London Inn to the side) but the noise from traffic didn't bother us in the least and you couldn't be better placed for the Bip supermarket either just along the road.
The owners of the Sema also own Supermarket Sema just a few steps from the entrance to the Levante Park and you can get a safety deposit key from them (can't remember how much but compared to other places I know I commented on how cheap it was).
Apartments were kept very clean - I think the maids were in every day, if not every other day - I know we saw them a lot and they were lovely.
We will definitely give the London Inn a try this year - unfair really to pass judgement on one meal eaten there 7/8 years ago really and to be fair it's ALWAYS heaving on an evening, so yes we'll make a point of visiting this year.
Oh I feel so homesick (yes, Cala Millor & Cala Bona feel like home). Only 23 more sleeps for us!