My experience with resellers here such as TELE2, Free and SFR was a nightmare. SFR is a book in itself on poor service, hopeless billing and disinterested staff. I recommend Orange (French Telecom as was). Obviously, I already had the line, supplied as with all local loops by FT as outside the cities, they are the only provider.
Losing patience with my then supplier SFR after yet another day with no internet, I rang Orange on a Saturday and arranged service with them. The following Tuesday the router and paperwork arrived and I tried to set up the system on the Wednesday. Somewhat unusually for technology today, the delivered router did not work so I called the help desk who arranged for an engineer to visit. The engineer arrived on the Friday, replaced the router and left me with a working system of line, telephone and internet. I could have had TV too if I desired. On leaving, the engineer looked at a section of the line and did not like a 2 metre stretch between the EDF pole in the road and theirs in my garden so arranged to return and change it which he did the following Monday assisted by another engineer with a cherry picker.
In the UK I worked for a telecom company and am well aware of the casual disregard the industry has in general for non business users. They expect a 'churn' of domestic consumers every year. This probably explains my amazement at the speed and quality of the whole process from Orange.
And no, I am not on commission!
And to explain Robert's acronym POTS - withing the industry there are POTS and PANS. POTS stands for Plain Old Telecom Services or the old analogue system we know and hate. PANS however stand for Pretty Amazing New Stuff which is all the new digital services we see arriving. I would place a small wager of the number of users on Satellite TV (like SKY) being overtaken by TV arriving down the telephone line within 10 years.