Its great isn’t it @Forever_Curious and saves me time linking multiple products 
Back to your question, the mini is a fantastic wand and I really like the smaller size but doesn’t come close in terms of power.
The closest rechargeable wand I’ve had to a mains powered wand (or bigger wand) was the Le Wand, which is amazing but its on the pricey side of wands.
I much prefer mains powered wands for the power but like the portability of the rechargeable ones. Each have there own purpose especially when travelling or going away.
If I had to rate them in terms of power:
- Original LH wand
- Le Wand
- Classic 2.0
- Mini
- Romp
I would probably stick with what she has and likes and then you don’t have any disappointments like I did with the 2.0 (my review is here) if you are interested.
Happy shopping 