# TLDR Review: Shark BU3521 Vacuum

*Published: 2024-09-16 | Updated: 2024-11-30 | Source: https://shopsavvy.com/reviews-tldr/shark-bu3521-vacuum*

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## Product: Shark BU3521 Vacuum
**Brand:** Shark

## Pros
- Lightweight design makes it easy to maneuver
- Auto-empty feature offers convenience and less manual work
- Good suction power is effective on various surfaces
- Easy to use, with user-friendly controls
- Battery life is sufficient to complete cleaning tasks
- Compact design ensures it doesn’t take up much space
- Brushroll design helps prevent hair tangling, perfect for pet owners

## Cons
- Noisy during the auto-empty process, which may be disruptive
- Struggles a bit with thick carpet, needing more suction for deep cleaning
- Awkward handle and battery placement may affect comfort and usability
- The debris bin could be larger to minimize frequent emptying

## Bottom Line

The Shark Clean & Empty Cordless Vacuum excels in portability and ease of use with its lightweight design and auto-empty system. It’s an excellent choice for individuals with pets due to its anti-hair wrap technology and sufficient suction power. However, it falls short on thick carpets and may be a bit noisy during auto-emptying. For those primarily dealing with hard floors and who appreciate easy maintenance, this vacuum is a solid contender. If you have extensive carpeted areas, you may need to consider additional or alternate cleaning solutions.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Lightweight design makes it easy to maneuver | Noisy during the auto-empty process, which may be disruptive |
| Auto-empty feature offers convenience and less manual work | Struggles a bit with thick carpet, needing more suction for deep cleaning |
| Good suction power is effective on various surfaces | Awkward handle and battery placement may affect comfort and usability |
| Easy to use, with user-friendly controls | The debris bin could be larger to minimize frequent emptying |
| Battery life is sufficient to complete cleaning tasks |  |
| Compact design ensures it doesn’t take up much space |  |
| Brushroll design helps prevent hair tangling, perfect for pet owners |  |

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| AliExpress | $218.57  | Check |
| The Home Depot | $279.99  | Check |
| Best Buy | $349.99  | Check |
| Wayfair | $349.99  | Check |

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*