IEEE Transactions on Cloud Computing (http://ieeexplore.ieee.org/xpl/aboutJournal.jsp?punumber=6245519) is tough but great venue to publish your research. Generally the review time is short and you get very detailed comments from the reviewers that help you to improve the paper in future.
IEEE Transactions on Cloud Computing is a prestigious journal having 5.967 as Impact Factor (IF) 2018 which is just updated in 2019. Note that its IF 2017 was 7.928 (https://academic-accelerator.com/Impact-Factor-IF/IEEE-Transactions-on-Cloud-Computing). On the other hand, according to Scimago Journal & Country Rank, the Impact Factor Quartile of IEEE Transactions on Cloud Computing is Q1 since 2015 (https://www.scimagojr.com/journalsearch.php?q=21100338351&tip=sid).