At my company, we have been using Dell desktops and laptops since we started up 8 years ago - that is about 75 desk systems and about 25 laptops (all Latitudes, which are a bit more rugged than the Inspirons, and a bit more expensive as a result.)
In that time, we have had very good results. If a system was removed from use, it was usually due to inadequate performance (old cpu, small drive, etc.) if it could not be upgraded, rather than breaking. We have some laptops that are now 5 or 6 years old and still working fine, although relegated to our testing lab and home dial-in use, rather than being the primary system for an employee.
In my case, I have gone through 3 laptops in six years, and the only two problems I have had was: the keyboard needed to be replaced on one (under the three year service contract) and the LCD hinge on another went south (replaced under the service contract). I upgraded each time, because I wanted a faster processor, not because the system was broken or unreliable. The two that I "gave up" are still in use in the company.
I carry my laptop on business trips (two or three a month) and back and forth from home every day. Never a problem!
FWIW, About four years ago, we tried 10 Fujitsu and IBM laptops under an austerity drive - they were cheaper than the Dells surprisingly. These all died within 2 to 3 years and have been junked. Now, our policy is that if you want anything other than a Dell, it had better be damn well justified to the "Computer Committee" (comprising one person ... me!

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So ... I would have to say that our Dell experience has been excellent.
Regardless, the choice is yours!
Z