No. no problems at all.
The Splunk Enterprise Trial version download page also says for 60 days you can use the trial version, with all (or most of the) splunk's features..
Search, analyze and visualize your data with a free Splunk download for 60 days.
(after the trail period of 60 days)
If you like what you see, it's simple to transition your trial to a production deployment.
https://www.splunk.com/en_us/download/get-started-with-your-free-trial.html
