Continuing on the topic (or slightly off-topic) of tax software, especially the online/cloud offerings, I switched from QuickTax to UFile in tax year 2007 and never looked back. During an overlap test, both produced identical results, but I switched because QuickTax was much too cumbersome/obtuse and non-Intuitive (which makes my comments here on-topic re "mom-ready"). Though UFile uses a similar "interview" style, it doesn't send me in endless circles the way QuickTax did, and UFile doesn't produce nearly as many irrelevant and often erroneous caution/"error" notices.
Also, UFile online allows you to catch up with returns as far back as 2000 (though CRA only lets you go back 10 years).
I've never been re-assessed, and my return even includes a T2125 for business/professional. So, I'm a happy UFile camper.
As a true aside, note that the current Netfile no-go applies to all tax software and is expected to be cleared up within days from now. It is CRA-triggered by the requirement for a late-stage update to all tax software that produces ".tax" files for uploading to Netfile.