Not at all. At first when SP2 was released it had some issues but those have been resolved over the past year + it has been out. Plus with all the security issues with XP that are out there the only way to make sure your system doesnt get attacked is by updating to SP2 with all the patches. It wount allow you to get them all with only SP1.
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Phone: LG Optimus G Pro
Running: Stock JB from LG with Nova Launcher