Although their prices are pretty cheap ,but my advice of caution -- do not ever go with them , I had 8 domains with , tried to change the nameservers (they never changed them) , support is all shaky , you will not get single satisfactory reply from them.
I had to file a report with ICANN to get my domains back from them and pay extra fee for domain transfer (more than the usual fee) .
Thats my personal experience with 1and1 ...