I have been using
1and1 hosting services for quite a while now and this is what I can say about them...
Domain Registration
Usually done within few hours.
Price for most popular TLD's com/net/org/info/name/us - $6.99/year
Unlimited number of domains can be managed on any shared hosting account.
Hosting Services
They offer shared services on Linux and MS servers - lots of storage and bandwidth.
Price is among the lowest (if not the lowest).
No reseller services
Speed - not the fastest but I would say above average.
Uptime - never saw my server being down
Server setup - they use latest STABLE versions of PHP and MySql
Admin Control Panels - using own software. Nice and user friendly. Many build-in features for easy integration with the website. Advanced statistics interface.
Email - webmail, POP3, IMAP servers.
Webmail is kind of slow
Support - 24/7 phone support, prompt reply to emails, large FAQ base.
Phone support reps are not always competent but I had very little problems to call them.
Limitations
Limited amount of MySql databases per account. Max database size is 100MB
Limited amount of FTP users per account
Conclusion
For average webmaster who is looking for affordable shared account with a lot of storage and bandwidth and needs to manage few domains this is a very good choice. Easy and quick setup, reliable service and fat software package is offered with every new hosting account.
Currently 1and1 providing hosting services in almost 100 countries around the world and you can find out more about offers available in UK
here
If you have any specific questions - feel free to ask and I will try to answer.