Not bad, especially if your new to tying or tying big steely flies.
This took me approximately 10-15mins - prepping your materials before you tie helps cut down the tying time considerably especially if you plan on tying a few of the same pattern
If your new to tying these sorts of flies then tie only 1 when your combining materials. take them to the sink or bathtub and watch how they swim.
Here is a pic of one I tied yesterday and tossed in the sink. As you can see it has a good medium to large profile and will keep shape in the current.
Both of those flies utilize pretty cheap tying materials but are "built" to keep shape and have a lot of movement in the water. When it comes to these "less is more" is what you have to remember. Too much material and it wont move well with the current and also wont sink quickly at all.